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Cisco anyconnect connection attempt has failed windows 11

This doucment describes a troubleshooting scenario which applies to applications that do not work through the Cisco AnyConnect VPN Client.

Introduction

This document describes a troubleshooting scenario which applies to applications that do not work through the Cisco AnyConnect VPN Client.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

The information in this document is based on a Cisco Adaptive Security Appliance (ASA) that runs Version 8.x.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Troubleshooting Process

This typical troubleshooting scenario applies to applications that do not work through the Cisco AnyConnect VPN Client for end-users with Microsoft Windows-based computers. These sections address and provide solutions to the problems:

• Installation and Virtual Adapter Issues
• Disconnection or Inability to Establish Initial Connection
• Problems with Passing Traffic
• AnyConnect Crash Issues
• Fragmentation / Passing Traffic Issues

Installation and Virtual Adapter Issues

Complete these steps:

Obtain the device log file:
Windows XP / Windows 2000:

Windowssetupapi.log

WindowsInfsetupapi.app.log 
WindowsInfsetupapi.dev.log 

If you see errors in the setupapi log file, you can turn up verbosity to 0x2000FFFF.

Windows XP / Windows 2000:

Documents and SettingsLocal SettingsTemp 

UsersAppDataLocalTemp 

If this is an automatic upgrade, this log is in the temp directory of the system:

WindowsTemp 

The filename is in this format: anyconnect-win-x.x.xxxx-k9-install-yyyyyyyyyyyyyy.log. Obtain the most recent file for the version of the client you want to install. The x.xxxx changes based on the version, such as 2.0.0343, and yyyyyyyyyyyyyy is the date and time of the install.

From a Command Prompt/DOS box, type this:
Windows XP / Windows 2000:

winmsd /nfo c:msinfo.nfo 

msinfo32 /nfo c:msinfo.nfo 

Note: After you type into this prompt, wait. It can take between two to five minutes for the file to complete.

systeminfo c:sysinfo.txt 

Refer to AnyConnect: Corrupt Driver Database Issue in order to debug the driver issue.

Disconnection or Inability to Establish Initial Connection

If you experience connection problems with the AnyConnect client, such as disconnections or the inability to establish an initial connection, obtain these files:

• The configuration file from the ASA in order to determine if anything in the configuration causes the connection failure: From the console of the ASA, type write net x.x.x.x:ASA-Config.txt where x.x.x.x is the IP address of a TFTP server on the network. OR From the console of the ASA, type show running-config . Let the configuration complete on the screen, then cut-and-paste to a text editor and save.
• The ASA event logs:
• In order to enable logging on the ASA for auth, WebVPN, Secure Sockets Layer (SSL), and SSL VPN Client (SVC) events, issue these CLI commands:

config terminal
logging enable
logging timestamp
logging class auth console debugging
logging class webvpn console debugging
logging class ssl console debugging
logging class svc console debugging

eventvwr.msc /s

If the user cannot connect with the AnyConnect VPN Client, the issue might be related to an established Remote Desktop Protocol (RDP) session or Fast User Switching enabled on the client PC. The user can see the AnyConnect profile settings mandate a single local user, but multiple local users are currently logged into your computer. A VPN connection will not be established error message error on the client PC. In order to resolve this issue, disconnect any established RDP sessions and disable Fast User Switching. This behavior is controlled by the Windows Logon Enforcement attribute in the client profile, however currently there is no setting that actually allows a user to establish a VPN connection while multiple users are logged on simultaneously on the same machine. Enhancement request CSCsx15061 was filed to address this feature.

Note: Make sure that port 443 is not blocked so the AnyConnect client can connect to the ASA.

When a user cannot connect the AnyConnect VPN Client to the ASA, the issue might be caused by an incompatibility between the AnyConnect client version and the ASA software image version. In this case, the user receives this error message: The installer was not able to start the Cisco VPN client, clientless access is not available .

In order to resolve this issue, upgrade the AnyConnect client version to be compatible with the ASA software image.

When you log in the first time to the AnyConnect, the login script does not run. If you disconnect and log in again, then the login script runs fine. This is the expected behavior.

When you connect the AnyConnect VPN Client to the ASA, you might receive this error: User not authorized for AnyConnect Client access, contact your administrator .

This error is seen when the AnyConnect image is missing from the ASA. Once the image is loaded to the ASA, AnyConnect can connect without any issues to the ASA.

This error can be resolved by disabling Datagram Transport Layer Security (DTLS). Go to Configuration > Remote Access VPN > Network (Client) Access > AnyConnect Connection Profiles and uncheck the Enable DTLS check box. This disables DTLS.

The dartbundle files show this error message when the user gets disconnected: TUNNELPROTOCOLDPDMGR_ERROR_NO_DPD_RESPONSE:The secure gateway failed to respond to Dead Peer Detection packets . This error means that the DTLS channel was torn due to Dead Peer Detection (DPD) failure. This error is resolved if you tweak the DPD keepalives and issue these commands:

webvpn 
svc keepalive 30 
svc dpd-interval client 80 
svc dpd-interval gateway 80

The svc keepalive and svc dpd-interval commands are replaced by the anyconnect keepalive and anyconnect dpd-interval commands respectively in ASA Version 8.4(1) and later as shown here:

webvpn
anyconnect ssl keepalive 15
anyconnect dpd-interval client 5
anyconnect dpd-interval gateway 5

Problems with Passing Traffic

When problems are detected with passing traffic to the private network with an AnyConnect session through the ASA, complete these data-gathering steps:

1. Obtain the output of the show vpn-sessiondb detail svc filter name ASA command from the console. If the output shows Filter Name: XXXXX , then gather the output for show access-list XXXXX. Verify that the access-list XXXXX does not block the intended traffic flow.
2. Export the AnyConnect statistics from AnyConnect VPN Client > Statistics > Details > Export (AnyConnect-ExportedStats.txt).
3. Check the ASA configuration file for nat statements. If Network Address Translation (NAT) is enabled, these must exempt data that returns to the client as a result of NAT. For example, to NAT exempt (nat 0) the IP addresses from the AnyConnect pool, use this on the CLI:

access-list in_nat0_out extended permit ip any 10.136.246.0 255.255.255.0
ip local pool IPPool1 10.136.246.1-10.136.246.254 mask 255.252.0.0
nat (inside) 0 access-list in_nat0_out

 !--- Route outside 0 0 is an incorrect statement. 
route outside 0 0 10.145.50.1
route inside 0 0 10.0.4.2 tunneled

ASA(config)# policy-map global_policy
ASA(config-pmap)# class inspection_default
ASA(config-pmap-c)# no inspect skinny

AnyConnect Crash Issues

Complete these data-gathering steps:

1. Ensure that the Microsoft Utility Dr Watson is enabled. In order to do this, choose Start > Run, and run Drwtsn32.exe. Configure this and click OK:

Number of Instructions : 25
Number of Errors To Save : 25
Crash Dump Type : Mini
Dump Symbol Table : Checked
Dump All Thread Contexts : Checked
Append To Existing Log File : Checked
Visual Notification : Checked
Create Crash Dump File : Checked

1. Choose Start > Run.
2. Enter:

eventvwr.msc /s

Fragmentation / Passing Traffic Issues

Some applications, such as Microsoft Outlook, do not work. However, the tunnel is able to pass other traffic such as small pings.

This can provide clues as to a fragmentation issue in the network. Consumer routers are particularly poor at packet fragmentation and reassembly.

Try a scaling set of pings in order to determine if it fails at a certain size. For example, ping -l 500, ping -l 1000, ping -l 1500, ping -l 2000.

It is recommended that you configure a special group for users that experience fragmentation, and set the SVC Maximum Transition Unit (MTU) for this group to 1200. This allows you to remediate users who experience this issue, but not impact the broader user base.

Problem

TCP connections hang once connected with AnyConnect.

Solution

In order to verify if your user has a fragmentation issue, adjust the MTU for AnyConnect clients on the ASA.

ASA(config)#group-policy attributes 
webvpn 
svc mtu 1200

Uninstall Automatically

Problem

The AnyConnect VPN Client uninstalls itself once the connection terminates. The client logs show that keep installed is set to disabled.

Solution

AnyConnect uninstalls itself despite that the keep installed option is selected on the Adaptive Security Device Manager (ASDM). In order to resolve this issue, configure the svc keep-installer installed command under group-policy.

Issue Populating the Cluster FQDN

Problem: AnyConnect client is pre-populated with the hostname instead of the cluster Fully Qualified Domain Name (FQDN).

When you have a load-balancing cluster set up for SSL VPN and the client attempts to connect to the cluster, the request is redirected to the node ASA and the client logs in successfully. After some time, when the client tries to connect to the cluster again, the cluster FQDN is not seen in the Connect to entries. Instead, the node ASA entry to which the client has been redirected is seen.

Solution

This occurs because the AnyConnect client retains the host name to which it last connected. This behavior is observed and a bug has been filed. For complete details about the bug, refer to Cisco bug ID CSCsz39019. The suggested workaround is to upgrade the Cisco AnyConnect to Version 2.5.

Backup Server List Configuration

A backup server list is configured in case the main server selected by the user is not reachable. This is defined in the Backup Server pane in the AnyConnect profile. Complete these steps:

1. Download the AnyConnect Profile Editor (registered customers only) . The file name is AnyConnectProfileEditor2_4_1.jar.
2. Create an XML file with the AnyConnect Profile Editor.
   1. Go to the server list tab.
   2. Click Add.
   3. Type the main server on the Hostname field.
   4. Add the backup server below the backup server list on the Host address field. Then, click Add.
   1. In ASDM, choose Configuration >Remote Access VPN >Network (Client) Access >AnyConnect Connection Profiles.
   2. Select your profile and click Edit.
   3. Click Manage from the Default Group Policy section.
   4. Select your group-policy and click Edit.
   5. Select Advanced and then click SSL VPN Client.
   6. Click New. Then, you need to type a name for the Profile and assign the XML file.

   AnyConnect: Corrupt Driver Database Issue

   This entry in the SetupAPI.log file suggests that the catalog system is corrupt:

   W239 driver signing class list «C:WINDOWSINFcertclas.inf» was missing or invalid. Error 0xfffffde5: Unknown Error. , assuming all device classes are subject to driver signing policy.

   You can also receive this error message: Error(3/17): Unable to start VA, setup shared queue, or VA gave up shared queue .

   You can receive this log on the client: «The VPN client driver has encountered an error» .

   Repair

   This issue is due to Cisco bug ID CSCsm54689. In order to resolve this issue, make sure that Routing and Remote Access Service is disabled before you start AnyConnect. If this does not resolve the issue, complete these steps:

   1. Open a command prompt as an Administrator on the PC (elevated prompt on Vista).
   2. Run net stop CryptSvc .
   3. Run:

   esentutl /p%systemroot%System32catroot2
   catdb

   Failed Repair

   If the repair fails, complete these steps:

   1. Open a command prompt as an Administrator on the PC (elevated prompt on Vista).
   2. Run net stop CryptSvc .
   3. Rename the %WINDIR%system32catroot2 to catroot2_old directory.
   4. Exit the command prompt.
   5. Reboot.

   Analyze the Database

   You can analyze the database at any time in order to determine if it is valid.

   1. Open a command prompt as an Admimistrator on the PC.
   2. Run:

   esentutl /g%systemroot%System32catroot2
   catdb

   Error Messages

   Error: Unable to Update the Session Management Database

   While the SSL VPN is connected through a web browser, the Unable to Update the Session Management Database. error message appears, and the ASA logs show %ASA-3-211001: Memory allocation Error. The adaptive security appliance failed to allocate RAM system memory .

   Solution 1

   This issue is due to Cisco bug ID CSCsm51093. In order to resolve this issue, reload the ASA or upgrade the ASA software to the interim release mentioned in the bug. Refer to Cisco bug ID CSCsm51093 for more information.

   Solution 2

   This issue can also be resolved if you disable threat-detection on ASA if threat-detection is used.

   Error: «Module c:Program FilesCiscoCisco AnyConnect VPN Clientvpnapi.dll failed to register»

   When you use the AnyConnect client on laptops or PCs, an error occurs during the install:

   "Module C:Program FilesCiscoCisco AnyConnect VPN Clientvpnapi.dll failed
   to register. "

   When this error is encountered, the installer cannot move forward and the client is removed.

   Solution

   These are the possible workarounds to resolve this error:

   • The latest AnyConnect client is no longer officially supported with Microsoft Windows 2000. It is a registry problem with the 2000 computer.
   • Remove the VMware applications. Once AnyConnect is installed, VMware applications can be added back to the PC.
   • Add the ASA to their trusted sites.
   • Copy these files from the ProgramFilesCiscoCiscoAnyconnect folder to a new folder and run the regsvr32 vpnapi.dll command prompt:
     • vpnapi.dll
     • vpncommon.dll
     • vpncommoncrypt.dll

     The log message related to this error on the AnyConnect client looks similar to this:

     DEBUG: Error 2911: Could not remove the folderC:Program FilesCiscoCisco AnyConnect
     VPN Client.
     The installer has encountered an unexpected error installing this package. This may
     indicate a problem with this package. The error code is 2911. The arguments are:
     C:Program FilesCiscoCisco AnyConnect VPN Client, ,
     DEBUG: Error 2911: Could not remove the folder C:Program FilesCiscoCisco AnyConnect
     VPN Client.
     The installer has encountered an unexpected error installing this package. This may
     indicate a problem with this package. The error code is 2911. The arguments are:
     C:Program FilesCiscoCisco AnyConnect VPN Client, ,
     Info 1721. There is a problem with this Windows Installer package. A program required for
     this install to complete could not be run. Contact your support personnel or package
     vendor. Action: InstallHelper.exe, location: C:Program FilesCiscoCisco AnyConnect VPN
     ClientInstallHelper.exe, command: -acl "C:Documents and SettingsAll UsersApplication
     DataCiscoCisco AnyConnect VPN Client\" -r

     Error: «An error was received from the secure gateway in response to the VPN negotiation request. Please contact your network administrator»

     When clients try to connect to the VPN with the Cisco AnyConnect VPN Client, this error is received.

     This message was received from the secure gateway:

     «Illegal address class» or «Host or network is 0» or «Other error»

     Solution

     The issue occurs because of the ASA local IP pool depletion. As the VPN pool resource is exhausted, the IP pool range must be enlarged.

     Cisco bug ID is CSCsl82188 is filed for this issue. This error usually occurs when the local pool for address assignment is exhausted, or if a 32-bit subnet mask is used for the address pool. The workaround is to expand the address pool and use a 24-bit subnet mask for the pool.

     Error: Session could not be established. Session limit of 2 reached.

     When you try to connect more than two clients with the AnyConnect VPN Client, you receive the Login Failed error message on the Client and a warning message in the ASA logs that states Session could not be established. Session limit of 2 reached . I have the AnyConnect essential license on the ASA, which runs Version 8.0.4.

     Solution 1

     This error occurs because the AnyConnect essential license is not supported by ASA version 8.0.4. You need to upgrade the ASA to version 8.2.2. This resolves the error.

     Note: Regardless of the license used, if the session limit is reached, the user will receive the login failed error message.

     Solution 2

     This error can also occur if the vpn-sessiondb max-anyconnect-premium-or-essentials-limit session-limit command is used to set the limit of VPN sessions permitted to be established. If the session-limit is set as two, then the user cannot establish more than two sessions even though the license installed supports more sessions. Set the session-limit to the number of VPN sessions required in order to avoid this error message.

     Error: Anyconnect not enabled on VPN server while trying to connect anyconnect to ASA

     You receive the Anyconnect not enabled on VPN server error message when you try to connect AnyConnect to the ASA.

     Solution

     This error is resolved if you enable AnyConnect on the outside interface of the ASA with ASDM. For more information on how to enable AnyConnect on the outside interface, refer to Configure Clientless SSL VPN (WebVPN) on the ASA.

     Error:- %ASA-6-722036: Group client-group User xxxx IP x.x.x.x Transmitting large packet 1220 (threshold 1206)

     The %ASA-6-722036: Group < client-group >User < xxxx >IP < x.x.x.x>Transmitting large packet 1220 (threshold 1206) error message appears in the logs of the ASA. What does this log mean and how is this resolved?

     Solution

     This log message states that a large packet was sent to the client. The source of the packet is not aware of the MTU of the client. This can also be due to compression of non-compressible data. The workaround is to turn off the SVC compression with the svc compression none command. This resolves the issue.

     Error: The secure gateway has rejected the agent’s vpn connect or reconnect request.

     When you connect to the AnyConnect Client, this error is received: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires re-authentication and must be started manually. Please contact your network administrator if this problem persists. The following message was received from the secure gateway: no assigned address» .

     This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the connection attempt. A new connection attempt to the same or another secure gateway is needed, which requires re-authentication. The following message was received from the secure gateway:Host or network is 0» .

     This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» .

     Solution

     The router was missing pool configuration after reload. You need to add the concerned configuration back to the router.

     Router#show run | in pool
     
     ip local pool SSLPOOL 192.168.30.2 192.168.30.254 
     svc address-pool SSLPOO

     The «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» error occurs when the AnyConnect mobility license is missing. Once the license is installed, the issue is resolved.

     Error: «Unable to update the session management database»

     When you try to authenticate in WebPortal, this error message is received: «Unable to update the session management database» .

     Solution

     This problem is related to memory allocation on the ASA. This issue is mostly encountered when the ASA Version is 8.2.1. Originally, this requires a 512MB RAM for its complete functionality.

     As a permanent workaround, upgrade the memory to 512MB.

     As a temporary workaround, try to free the memory with these steps:

     1. Disable the threat-detection.
     2. Disable SVC compression.
     3. Reload the ASA.

     Error: «The VPN client driver has encountered an error»

     This is an error message obtained on the client machine when you try to connect to AnyConnect.

     Solution

     In order to resolve this error, complete this procedure in order to manually set the AnyConnect VPN agent to Interactive:

     1. Right-click My Computer > Manage > Services and Applications > Services > and select the Cisco AnyConnect VPN Agent.
     2. Right-click Properties, then log on, and select Allow service to interact with the desktop. This sets the registry Type value DWORD to 110 (default is 010) for the HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesvpnagent. Note: If this is to be used, then the preference would be to use the .MST transform in this instance. This is because if you set this manually with these methods, it requires that this be set after every install/upgrade process. This is why there is a need to identify the application that causes this problem. When Routing and Remote Access Service (RRAS) is enabled on the Windows PC, AnyConnect fails with the The VPN client driver has encountered an error. error message. In order to resolve this issue, make sure that Routing and RRAS is disabled before starting AnyConnect. Refer to Cisco bug ID CSCsm54689 for more information.

     Error: «Unable to process response from xxx.xxx.xxx.xxx»

     AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Unable to process response from xxx.xxx.xxx.xxx» .

     Solution

     In order to resolve this error, try these workarounds:

     • Remove WebVPN from the ASA and reenable it.
     • Change the port number to 444 from the existing 443 and reenable it on 443.

     For more information on how to enable WebVPN and change the port for WebVPN, refer to this Solution.

     Error: «Login Denied , unauthorized connection mechanism , contact your administrator»

     AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Login Denied , unauthorized connection mechanism , contact your administrator» .

     Solution

     This error message occurs mostly because of configuration issues that are improper or an incomplete configuration. Check the configuration and make sure it is as required to resolve the issue.

     Error: «Anyconnect package unavailable or corrupted. Contact your system administrator»

     This error occurs when you try to launch the AnyConnect software from a Macintosh client in order to connect to an ASA.

     Solution

     In order to resolve this, complete these steps:

     1. Upload the Macintosh AnyConnect package to the flash of the ASA.
     2. Modify the WebVPN configuration in order to specify the AnyConnect package that is used.

     webvpn 
     svc image disk0:/anyconnect-macosx-i386-2.3.2016-k9.pkg 2 
     svc image disk0:/anyconnect-macosx-powerpc-2.3.2016-k9.pkg 3

     The svc image command is replaced by the anyconnect image command in ASA Version 8.4(1) and later as shown here:

     hostname(config)#webvpn
     hostname(config-webvpn)#anyconnect image disk0:/
     anyconnect-win-3.0.0527-k9.pkg 1
     hostname(config-webvpn)#anyconnect image disk0:/
     anyconnect-macosx-i386-3.0.0414-k9.pkg 2

     Error: «The AnyConnect package on the secure gateway could not be located»

     This error is caused on the user’s Linux machine when it tries to connect to the ASA by launching AnyConnect. Here is the complete error:

     "The AnyConnect package on the secure gateway could not be located. You may
     be experiencing network connectivity issues. Please try connecting again."

     Solution

     In order to resolve this error message, verify whether the Operating System (OS) that is used on the client machine is supported by the AnyConnect client.

     If the OS is supported, then verify if the AnyConnect package is specified in the WebVPN configuration or not. See the Anyconnect package unavailable or corrupted section of this document for more information.

     Error: «Secure VPN via remote desktop is not supported»

     Users are unable to perform a remote desktop access. The Secure VPN via remote desktop is not supported error message appears.

     Solution

     This issue is due to these Cisco bug IDs: CSCsu22088 and CSCso42825. If you upgrade the AnyConnect VPN Client, it can resolve the issue. Refer to these bugs for more information.

     Error: «The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established»

     When you attempt to VPN to the ASA 5505, the The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established error message appears.

     Solution

     In order to resolve this error, you must disable the Federal Information Processing Standards (FIPS) in the AnyConnect Local Policy file. This file can usually be found at C:ProgramDataCiscoCisco AnyConnect VPN ClientAnyConnectLocalPolicy.xml . If this file is not found in this path, then locate the file at a different directory with a path such as C:Documents and SettingsAll UsersApplication DataCisco AnyConnectVPNClientAnyConnectLocalPolicy.xml . Once you locate the xml file, make changes to this file as shown here:

     Change the phrase:

     Then, restart the computer. Users must have administrative permissions in order to modify this file.

     Error: «Certificate Validation Failure»

     Users are unable to launch AnyConnect and receive the Certificate Validation Failure error.

     Solution

     Certificate authentication works differently with AnyConnect compared to the IPSec client. In order for certificate authentication to work, you must import the client certificate to your browser and change the connection profile in order to use certificate authentication. You also need to enable this command on your ASA in order to allow SSL client-certificates to be used on the outside interface:

     ssl certificate-authentication interface outside port 443

     Error: «VPN Agent Service has encountered a problem and needs to close. We are sorry for the inconvenience»

     When AnyConnect Version 2.4.0202 is installed on a Windows XP PC, it stops at updating localization files and an error message shows that the vpnagent.exe fails.

     Solution

     This behavior is logged in Cisco bug ID CSCsq49102. The suggested workaround is to disable the Citrix client.

     Error: «This installation package could not be opened. Verify that the package exists»

     When AnyConnect is downloaded, this error message is received:

     «Contact your system administrator. The installer failed with the following error: This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.»

     Solution

     Complete these steps in order to fix this issue:

     1. Remove any anti-virus software.
     2. Disable the Windows firewall.
     3. If neither Step 1 or 2 helps, then format the machine and then install.
     4. If the problem still persists, open a TAC Case.

     Error: «Error applying transforms. Verify that the specified transform paths are valid.»

     This error message is recieved during the auto-download of AnyConnect from the ASA:

     "Contact your system administrator. The installer failed with the following error:
     Error applying transforms. Verify that the specified transform paths are valid."

     This is the error message received when connecting with AnyConnect for MacOS:

     "The AnyConnect package on the secure gateway could not be located. You may be
     experiencing network connectivity issues. Please try connecting again."

     Solution

     Complete one of these workarounds in order to resolve this issue:

     1. The root cause of this error might be due to a corrupted MST translation file (for example, imported). Perform these steps to fix this:
        1. Remove the MST translation table.
        2. Configure the AnyConnect image for MacOS in the ASA.

        If neither of these workarounds resolve the issue, contact Cisco Technical Support.

        Error: «The VPN client driver has encountered an error»

        This error is received:

        The VPN client driver has encountered an error when connecting through Cisco
        AnyConnect Client.

        Solution

        This issue can be resolved when you uninstall the AnyConnect Client, and then remove the anti-virus software. After this, reinstall the AnyConnect Client. If this resolution does not work, then reformat the PC in order to fix this issue.

        Error: «A VPN reconnect resulted in different configuration setting. The VPN network setting is being re-initialized. Applications utilizing the private network may need to be restored.»

        This error is received when you try to launch AnyConnect:

        "A VPN reconnect resulted in different configuration setting. The VPN network
        setting is being re-initialized. Applications utilizing the private network may
        need to be restarted."

        Solution

        In order to resolve this error, use this:

        group-policy attributes 
        webvpn 
        svc mtu 1200

        The svc mtu command is replaced by the anyconnect mtu command in ASA Version 8.4(1) and later as shown here:

        hostname(config)#group-policy attributes
        
        hostname(config-group-policy)#webvpn
        hostname(config-group-webvpn)#anyconnect mtu 500
         

        AnyConnect Error While Logging In

        Problem

        The AnyConnect receives this error when it connects to the Client:

        The VPN connection is not allowed via a local proxy. This can be changed
        through AnyConnect profile settings.

        Solution

        The issue can be resolved if you make these changes to the AnyConnect profile:

        Add this line to the AnyConnect profile:

        IgnoreProxyAllowLocalProxyConnections>
        false

        IE Proxy Setting is Not Restored after AnyConnect Disconnect on Windows 7

        Problem

        In Windows 7, if the IE proxy setting is configured for Automatically detect settings and AnyConnect pushes down a new proxy setting, the IE proxy setting is not restored back to Automatically detect settings after the user ends the AnyConnect session. This causes LAN issues for users who need their proxy setting configured for Automatically detect settings.

        Solution

        This behavior is logged in Cisco bug ID CSCtj51376. The suggested workaround is to upgrade to AnyConnect 3.0.

        Error: AnyConnect Essentials can not be enabled until all these sessions are closed.

        This error message is received on Cisco ASDM when you attempt to enable the AnyConnect Essentials license:

        There are currently 2 clientless SSL VPN sessions in progress. AnyConnect
        Essentials can not be enabled until all these sessions are closed.

        Solution

        This is the normal behavior of the ASA. AnyConnect Essentials is a separately licensed SSL VPN client. It is entirely configured on the ASA and provides the full AnyConnect capability, with these exceptions:

        • No Cisco Secure Desktop (CSD) (including HostScan/Vault/Cache Cleaner)
        • No clientless SSL VPN
        • Optional Windows Mobile Support

        This license cannot be used at the same time as the shared SSL VPN premium license. When you need to use one license, you need to disable the other.

        Error: Connection tab on Internet option of Internet Explorer hides after getting connected to the AnyConnect client.

        The connection tab on the Internet option of Internet Explorer hides after you are connected to the AnyConnect client.

        Solution

        This is due to the msie-proxy lockdown feature. If you enable this feature, it hides the Connections tab in Microsoft Internet Explorer for the duration of an AnyConnect VPN session. If you disable the feature, it leaves the display of the Connections tab unchanged.

        Error: Few users getting Login Failed Error message when others are able to connect successfully through AnyConnect VPN

        A few users receive the Login Failed Error message when others can connect successfully through the AnyConnect VPN.

        Solution

        This issue can be resolved if you make sure the do not require pre-authentication checkbox is checked for the users.

        Error: The certificate you are viewing does not match with the name of the site you are trying to view.

        During the AnyConnect profile update, an error is shown that says the certificate is invalid. This occurs with Windows only and at the profile update phase. The error message is shown here:

        The certificate you are viewing does not match with the name of the site
        you are trying to view.

        Solution

        This can be resolved if you modify the server list of the AnyConnect profile in order to use the FQDN of the certificate.

        This is a sample of the XML profile:

         
         
        vpn1.ccsd.net
         
         
        

        Note: If there is an existing entry for the Public IP address of the server such as , then remove it and retain only the FQDN of the server (for example, but not ).

        Cannot Launch AnyConnect From the CSD Vault From a Windows 7 Machine

        When the AnyConnect is launched from the CSD vault, it does not work. This is attempted on Windows 7 machines.

        Solution

        Currently, this is not possible because it is not supported.

        AnyConnect Profile Does Not Get Replicated to the Standby After Failover

        The AnyConnect 3.0 VPN client with ASA Version 8.4.1 software works fine. However, after failover, there is no replication for the AnyConnect profile related configuration.

        Solution

        This problem has been observed and logged under Cisco bug ID CSCtn71662. The temporary workaround is to manually copy the files to the standby unit.

        AnyConnect Client Crashes if Internet Explorer Goes Offline

        When this occurs, the AnyConnect event log contains entries similar to these:

        Description : Function:
        CAdapterNetworkStateIfc::SetConnectedStateToConnected
        File: .AdapterNetworkStateIfc.cpp
        Line: 147
        Invoked Function: InternetSetOption
        Return Code: 12010 (0x00002EEA)
        Description: The length is incorrect for the option type
        Description : Function: CTransportWinHttp::InitTransport
        File: .CTransportWinHttp.cpp
        Line: 252
        Invoked Function: CConnectedStateIfc::SetConnectedStateToConnected
        Return Code: -25362420 (0xFE7D000C)
        Description: CADAPTERNETWORKSTATEIFC_ERROR_SET_OPTION

        Solution

        This behavior is observed and logged under Cisco bug ID CSCtx28970. In order to resolve this, quit the AnyConnect application and relaunch. The connection entries reappear after relaunch.

        Error Message: TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER

        The AnyConnect client fails to connect and the Unable to establish a connection error message is received. In the AnyConnect event log, the TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER error is found.

        Solution

        This occurs when the headend is configured for split-tunneling with a very large split-tunnel list (approximately 180-200 entries) and one or more other client attributes are configured in the group-policy, such as dns-server.

        In order to resolve this issue, complete these steps:

        1. Reduce the number of entries in the split-tunnel list.
        2. Use this configuration in order to disable DTLS:

        group-policy groupName attributes 
        webvpn 
        svc dtls none

        For more information, refer to Cisco bug ID CSCtc41770.

        Error Message: «Connection attempt has failed due to invalid host entry»

        The Connection attempt has failed due to invalid host entry error message is received while AnyConnect is authenticated with the use of a certificate.

        Solution

        In order to resolve this issue, try either of these possible solutions:

        • Upgrade the AnyConnect to Version 3.0.
        • Disable Cisco Secure Desktop on your computer.

        For more information, refer to Cisco bug ID CSCti73316.

        Error: «Ensure your server certificates can pass strict mode if you configure always-on VPN»

        When you enable the Always-On feature on AnyConnect, the Ensure your server certificates can pass strict mode if you configure always-on VPN error message is received.

        Solution

        This error message implies that if you want to use the Always-On feature, you need a valid sever certificate configured on the headend. Without a valid server certificate, this feature does not work. Strict Cert Mode is an option that you set in the AnyConnect local policy file in order to ensure the connections use a valid certificate. If you enable this option in the policy file and connect with a bogus certificate, the connection fails.

        Error: «An internal error occurred in the Microsoft Windows HTTP Services»

        This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

        ******************************************
        Date : 03/25/2014
        Time : 09:52:21
        Type : Error
        Source : acvpnui
        Description : Function: CTransportWinHttp::SendRequest
        File: .CTransportWinHttp.cpp
        Line: 1170
        Invoked Function: HttpSendRequest
        Return Code: 12004 (0x00002EE4)
        Description: An internal error occurred in the Microsoft 
        Windows HTTP Services 
        *****************************************
        Date : 03/25/2014
        Time : 09:52:21
        Type : Error
        Source : acvpnui
        Description : Function: ConnectIfc::connect
        File: .ConnectIfc.cpp
        Line: 472
        Invoked Function: ConnectIfc::sendRequest
        Return Code: -30015443 (0xFE36002D)
        Description: CTRANSPORT_ERROR_CONN_UNKNOWN
        ******************************************
        Date : 03/25/2014
        Time : 09:52:21
        Type : Error
        Source : acvpnui
        Description : Function: ConnectIfc::TranslateStatusCode
        File: .ConnectIfc.cpp
        Line: 2999
        Invoked Function: ConnectIfc::TranslateStatusCode
        Return Code: -30015443 (0xFE36002D)
        Description: CTRANSPORT_ERROR_CONN_UNKNOWN
        Connection attempt failed. Please try again.
        ******************************************

        Also, refer to the event viewer logs on the Windows machine.

        Solution

        This could be caused due to a corrupted Winsock connection. Reset the connection from the command promt with this command and restart your windows machine:

        netsh winsock reset

        Refer to the How to determine and to recover from Winsock2 corruption in Windows Server 2003, in Windows XP, and in Windows Vista knowledge base article for more information.

        Error: «The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.»

        This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

        ******************************************
        Date : 10/27/2014
        Time : 16:29:09
        Type : Error
        Source : acvpnui
        Description : Function: CTransportWinHttp::handleRequestError
        File: .CTransportWinHttp.cpp
        Line: 854
        The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.
        ******************************************
        Date : 10/27/2014
        Time : 16:29:09
        Type : Error
        Source : acvpnui
        Description : Function: CTransportWinHttp::SendRequest
        File: .CTransportWinHttp.cpp
        Line: 1199
        Invoked Function: CTransportWinHttp::handleRequestError
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE
        ******************************************
        Date : 10/27/2014
        Time : 16:29:09
        Type : Error
        Source : acvpnui
        Description : Function: ConnectIfc::TranslateStatusCode
        File: .ConnectIfc.cpp
        Line: 3026
        Invoked Function: ConnectIfc::TranslateStatusCode
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE
        Connection attempt failed. Please try again.
        ******************************************

        Solution

        Windows 8.1 does not support RC4 according to the following KB update:

        Either configure DES/3DES ciphers for SSL VPN on the ASA using the command «ssl encryption 3des-sha1 aes128-sha1 aes256-sha1 des-sha1» OR edit the Windows Registry file on the client machine as mentioned below:

        Related Information

        • Cisco ASA 5500 Series Adaptive Security Appliances
        • AnyConnect VPN Client FAQ
        • Cisco Secure Desktop (CSD) FAQ
        • Cisco AnyConnect VPN Client
        • Technical Support & Documentation — Cisco Systems

        Some Windows users are reportedly getting the ‘Connection attempt failed‘ error when running the Cisco AnyConnect application in the hopes of establishing a virtual private network (VPN). This issue is reported to occur with Windows 8.1 and Windows 10.

        

        Connection Attempt Failed with Cisco AnyConnect

        As it turns out, this particular issue can occur due to several different common scenarios. Here’s a list of potential culprits that might be triggering this error code:

        • Missing Hotfix for TLS Protocol Renegotiation – As it turns out, there are a couple of updates with the potential of causing issues with Cisco AnyConnect. Several affected users have managed to fix the issue by installing every pending update in order to resolve the inconsistency with the TLS protocol renegotiation and fallback behavior.
        • Incompatibility with Windows 10 – According to a lot of Windows 10 users, you can expect to see this problem occurring due to an incompatibility affecting the SSL/TLS API that inhibits the Cisco AnyConnect tool from communicating with an outside server. In this case, you should be able to resolve the issue by forcing the vpnui.exe file to open in compatibility mode with Windows 8.
        • Error caused by Windows Update KB 3034682 – If you find yourself in a scenario where the issue suddenly started to occur after WU installed update KB 3034682, chances are the update contains a problematic security rule that is interfering with Cisco AnyConnect. In this case, you can resolve the issue by uninstalling and hiding the problematic update with a specialized utility.
        • Hyper-V Conflict on Windows 10 – It’s a well-known fact that Hyper-V is known to conflict with a lot of VPN facilitators such as Cisco AnyConnect and this scenario is no exception. If you find yourself in this scenario, you should be able to resolve the issue by disabling Hyper-V prior to launching the application.
        • Connection Sharing is Enabled – As it turns out, you can also expect to see this error code popping up due to a network sharing functionality that interferes with Cisco AnyConnect. If this scenario is applicable, you should be able to fix the problem by disabling the network connection sharing from the Network Connections tab.
        • Internet Explorer is configured to Work Offline – Since Cisco AnyConnect and IE share some common functionality, you can expect to see this error in those situations where IE’s offline mode is enabled by default. In this case, you can fix the issue by making some changes via the Registry Editor.

        Now that you know every potential scenario that might be responsible for the apparition of the ‘Connection attempt failed‘ error, here’s a list of verified methods that other users have successfully deployed in order to bypass the error message:

        1. Install every Pending Windows Update

        As it turns out, one of the most common instances that might trigger this problem is a security update (3023607) that ends up affecting the default behavior regarding the TLS protocol renegotiation and fallback behavior.

        According to some affected users, the issue was finally resolved after they run the Microsoft Update utility and installed every security and cumulative update including March cumulative security update for Internet Explorer (MS15-018) and Vulnerability in SChannel could allow security feature bypass: March 10, 2015 (MS15-031).

        If you’re not certain that you have every available Windows update installed on your computer, follow the instructions below:

        1. Press Windows key + R to open up a Run dialog box. Next, type ”ms-settings:windowsupdate’ and press Enter to open up the Windows Update tab of the Settings app. Opening Windows Update
        2. Inside the Windows update screen, go ahead and click on Check for updates. Next, follow the on-screen prompts to install every Windows update that is currently scheduled to be installed. Installing every pending Windows Update Note: Install every type of update including cumulative and security updates, not just important ones.
        3. You should keep in mind that if you have a lot of pending updates, you will be prompted to restart before every update is installed. If this happens, restart your PC as instructed, but make sure to return to this screen at the next startup and finish the installation of the rest of the updates.
        4. After every pending update is installed, reboot your computer once again and see if the Cisco AnyConnect error is now fixed.

        2. Run Cisco AnyConnect in Compatibility Mode (Windows 10 only)

        If installing every pending update didn’t do the trick for you or you’re encountering the issue on Windows 10, chances are you’re dealing with an incompatibility issue. This most commonly occurs due to a Critical Windows 10 Update (3023607) that changes some details in regards to the SSL/TLS API in a way that breaks the Cisco AnyConnect app.

        If you face this issue on Windows 10, the easiest way to fix it is to force the main executable (the one you use to launch Cisco AnyConnect) to run in Compatibility Mode with Windows 8.

        In case you find yourself in this particular scenario, follow the instructions below to force the vpnui.exe executable to run in compatibility mode with Windows 8:

        Open File Explorer and navigate to the location where you installed the Cisco AnyCOnnectMobility Client folder. Unless you installed the utility in a custom location, you’ll find it in:

        C:Program Files (x86)CiscoCisco AnyConnect Secure Mobility Client

        

     2. Once you’re inside the correct location, right-click on vpnui.exe and click on the Properties entry from the context menu that just appeared.
     3. Once you’re inside the Properties screen, click on Compatibility, then go to Compatibility mode and check the box where it says ‘Run this program in compatibility mode for:’.
     4. After checking the box, it will unlock a list of other versions of Windows, select the list and click on Windows 8. Running Cisco AnyConnect’s executable in Compatibility Mode with Windows 8
     5. Finally, click on Apply and launch the game to see if the graphics error still occurs.

     If you already tried forcing the vpnui.exe executable to run in compatibility mode with Windows 8 and you’re still seeing the same Connection attempt failed error, move down to the next potential fix below.

     3. Uninstalling & hide the KB 3034682 update

     If the first 2 methods did not work for you or were not applicable, the last resort would be to simply uninstall the problematic update that is causing the update on Windows 10 (3034682).

     However, keep in mind that unless you take some steps to hide the problematic update, it will eventually find your way onto your computer and cause the same issue all over again after several system restarts.

     But you can prevent this from occurring by using the Microsoft Show or Hide troubleshooter to hide the problematic update after you uninstall the KB 3034682 update.

     If you’re looking for specific instructions on how to do this, follow the instructions below:

     1. Press Windows key + R to open up a Run dialog box. Next, type “ms-settings:windowsupdate” inside the text box and press Enter to open up the Windows Update screen of the Settings app.
     2. Inside the Windows Update screen, click on View Update history from the left-hand section of the screen.
     3. Next, from the list of recently installed updates loads up, click on Uninstall updates (at the top of the screen).
     4. Scroll down through the list of installed updates and locate the KB3034682 update inside the list of installed updates.
     5. After you manage to locate the correct update, right-click on it and choose Uninstall from the context menu. Then, click Yes at the confirmation prompt to start the process.
     6. Once the update has been uninstalled, visit the download page of the Microsoft Show or Hide troubleshooter package and download the troubleshooter.
     7. Once the download is complete, open the .diagcab file and immediately click on the Advanced button. Next, check the box associated with Apply Repairs Automatically.
     8. Hit Next to advance to the next menu and wait for the utility to finish the scan for updates before finally clicking on Hide Updates.
     9. Once the operation is complete, check the box associated with the update that you want to hide, then click on Next to advance to hide the selected update from Windows Update.
     10. Finally, wait until the procedure is complete, then restart your computer and see if the issue has been resolved once the next startup sequence is complete.

     Uninstall and hiding the update

     If the same issue is still occurring even after you went through the trouble of uninstalling and hiding the problematic update, move down to the next potential fix below.

     4. Disabling Hyper-V (Windows 10)

     As it turns out, it turns out that you can also expect to encounter this error due to a conflict between Cisco AnyConnect and the main Hyper-V service that’s enabled by default on Windows 10.

     Several affected users that were also encountering this problem have reported that they finally managed to fix the ‘Connection attempt failed’ error by temporarily disabling Hyper-V and all associated services before rebooting the computer and using Cisco AnyConnect.

     If you suspect this scenario might be applicable to your current situation, follow the instructions below to disable Hyper-V from the Windows Features menu:

     1. Start by pressing Windows key + R to open up a Run dialog box. Inside the text box, type ‘appwiz.cpl’ and press Enter to open up the Programs and Features menu. If you are prompted by the UAC (User Account Control), click Yes to grant admin access. Opening to Programs and Features screen
     2. Next, from the Programs and Features menu, use the menu on the left to click on Turn Windows features on or off. At the User Account Control prompt, click Yes to grant admin access. Turning Windows Features On and Off
     3. Once you’re inside the Windows Features screen, scroll down through the list of Windows Features and uncheck the box associated with Hyper-V. Next, click on Ok to save the changes. Disabling Hyper V
     4. Once the Hyper-V functionality is disabled, restart your computer and see if the problem is fixed once the next startup is complete.

     5. Disable Network Connection sharing

     If none of the methods above have worked for you, and you are currently sharing a network connection via the Microsoft Hosted Network Virtual Adapter, you might be able to resolve the ‘Connection attempt failed‘ error by disabling the shared network connection.

     If this scenario is applicable to your particular scenario, several affected users have managed to fix this issue by accessing the Network Connections tab and modifying the default Sharing configuration so that network connection sharing is not allowed.

     If you’re looking for specific step-by-step instructions on how to do this, follow the instructions below:

     1. Start by press Windows key + R to open up a Run dialog box. Inside the ‘ncpa.cpl’ inside the text box and press Enter to open up the Network Connections tab. If you’re prompted by the UAC (User Account Control), click Yes to grant admin access. Opening the Network Connections screen
     2. Inside the Network Connections tab, look through the list of network adapters and identify the one created specifically for hosting hotspot networks. Traditionally, it should be named Microsoft Hosted Network Virtual Adapter.
     3. Once you identify the correct network adapter, right-click on it and choose Properties from the context menu that just appeared. Accessing the Properties screen of the Hosted Network Virtual Adapter Note: When you see the UAC (User Account Control), click Yes to grant admin access.
     4. Inside the Properties screen of the Microsoft Hosted Network Virtual Adapter, access the Sharing tab from the menu at the top, then uncheck the box associated with Allow other network users to connect through this computer’s Internet connection.
        Disabling internet connection sharing
     5. Finally, click Ok to save the changes, then restart your computer.
     6. Attempt to start the hotspot network once again and see if the issue is now resolved.

     In case the same kind of problem is still occurring, move down to the next potential fix below.

     6. Disable IE’S Ability to Work Offline via Registry Editor

     If none of the methods above have proven to be effective in your case, it’s also possible to face this problem to the fact that Internet Explorer is configured to ‘work in offline mode’. IE’s Offline mode is notoriously known to conflict with a lot of VPN facilitators such as the Cisco AnyConnect software.

     This would not be a problem if Microsoft didn’t remove the option to change this default behavior and made it so that the option now defaults to online.

     Since there’s no longer an option to make this modification from the GUI menu, you’ll have to resort to a Registry modification.

     Follow the instructions below to disable Internet Explorer’s ability to work in Offline Mode via Registry Editor:

     

     1. Press Windows key + R to open up a Run dialog box. Next, type ‘regedit’ and press Ctrl + Shift + Enter to open up an elevated Registry Editor prompt. When you are prompted by the UAC (User Account Control), click Yes to grant admin access. Opening the Registry Editor
     2. Inside the Registry Editor, use the left-hand side menu to navigate to the following location:

     HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet Settings

     

     Note: You can either navigate to this location manually or you can paste the location directly into the navigation bar and press Enter to get there instantly.

   • Once you get to the correct location, move down to the right-hand side section and locate the GlobalUserOffline DWORD key. Modifying the value of GlobalUserOffline
   • When you see it, double-click on it and set the Base to Hexadecimal and the value to 0, and click Ok to save the changes.
   • Restart your computer and see if the problem is fixed once the next startup is complete.

Kevin Arrows

Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget.

Download PC Repair Tool to quickly find & fix Windows errors automatically

Some users of Windows 10 who use the Cisco AnyConnect tool on a regular basis, have come across an error that is called, Connection attempt failed. This usually happens when you’re attempting to run a virtual private network (VPN) but worry not because there are ways to solve it. It can also due to a network or PC issue and you are asked to verify internet connectivity and try again.



Hopefully, one day a true fix will be released and solve the problem once and for all. But for now, we suggest following our lead for the time being.

1. Open Cisco AnyConnect via Compatibility Mode
2. Disable Microsoft Hyper V in Windows 10
3. Turn off Internet Connection sharing

Let us discuss this from a more detailed perspective.

1] Open Cisco AnyConnect via Compatibility Mode

To do this, you must first source the primary executable file. Not everyone knows how to get this done, so if you fall under that category, then you will want to open the File Explorer and navigate to the following location:

C:Program Files (x86)CiscoCisco AnyConnect Secure Mobility Client

After accessing the folder, please right-click on vpnui.exe, then select Properties.

From there, go to Compatibility > Compatibility mode. Finally, check the box where it says, Run this program in compatibility mode for.

Select Windows 8 or Windows 7 from the list, then hit Apply > OK.

Restart your computer, then attempt to run Cisco AnyConnect once more to see if the Connection attempt failed error still makes an appearance.

2] Disable Microsoft Hyper V in Windows 10



One other way to solve the Connection attempt failure is to turn off Hyper V in Windows 10. There are three easy steps to take in order to disable Hyper V.

As you will see from the article, there are multiple ways to disable Hyper V, so use the method that works best for you.

3] Turn off Internet Connection sharing



If the options above fail, then your next step is to disable Internet Connection Sharing from within Windows 10. It’s quite easy, and you will learn all you need to know once you’ve read every word.

READ: Cisco Packet Tracer Networking Simulation Tool and its free alternatives.



Vamien McKalin possesses the awesome power of walking on water like a boss. He’s also a person who enjoys writing about technology, comics, video games, and anything related to the geek world.

На чтение 10 мин. Опубликовано 15.12.2019

Я пытаюсь подключиться к VPN на своем рабочем месте, но Cisco AnyConnect не работает после запуска соединения. Появляется ошибка с сообщением The VPN client failed to establish a connection , после чего появляется другая ошибка: AnyConnect was not able to establish a connection to the specified secure gateway. Please try connecting again. Я все пробовал. Переустановка, перезапуск и другие другие функции, такие как отключение ICS (общий доступ к подключению Интернета). Я попробовал это на своем ноутбуке, и веб-установщик работал нормально. Он установил клиента и подключился отлично, так что это должно быть что-то с этим ПК. Я пытаюсь понять это примерно в течение 5 часов, и Google не помогает. Вот история сообщений от AnyConnect:

[11/11/2013 1:55:55 PM] Ready to connect. [11/11/2013 1:57:05 PM] Contacting —.—.—.— [11/11/2013 1:57:07 PM] Please enter your username and password. [11/11/2013 1:57:08 PM] User credentials entered. [11/11/2013 1:57:08 PM] Establishing VPN session. [11/11/2013 1:57:09 PM] Checking for profile updates. [11/11/2013 1:57:09 PM] Checking for product updates. [11/11/2013 1:57:10 PM] Checking for customization updates. [11/11/2013 1:57:10 PM] Performing any required updates. [11/11/2013 1:57:15 PM] Establishing VPN session. [11/11/2013 1:57:15 PM] Establishing VPN — Initiating connection. [11/11/2013 1:57:16 PM] Disconnect in progress, please wait. [11/11/2013 1:57:29 PM] Connection attempt has failed. [11/11/2013 1:59:31 PM] Ready to connect.

Я попытался отключить брандмауэр и антивирус. Я не думал, что это будет иметь значение, поскольку мой ноутбук использует тот же брандмауэр и антивирус, и мне не нужно было его отключать. Мой ноутбук использует Windows 7 Home 64-bit, а мой компьютер с ошибкой использует 64-разрядную версию Windows 7 Ultimate.

6 ответов

Решением для меня было отключить общий доступ к подключению Интернета (ICS).

Чтобы устранить эту проблему:

1. Нажмите кнопку Windows Start .
2. Нажмите Control Panel .
3. Установите View by: в Category .
4. Нажмите View network status and tasks в Network and Internet .
5. Нажмите Change adapter settings .
6. Найдите Shared в столбце Status и щелкните его правой кнопкой мыши и нажмите Properties .
7. Перейдите на вкладку Sharing .
8. Снимите флажок Allow other network users to connect through this computer’s Internet connection .
9. Нажмите OK .
10. Переустановите Cisco AnyConnect.

Я вижу, что отключение ICS не работало для OP, но это работало для меня и многих других, по мнению различных форумов, кажется.

Это может быть проблема с ThinkPad. Lenovo опубликовала рекомендательную статью , указывающую, что их программное обеспечение Access Connections мешает AnyConnect. Решение состоит в отключении ICS. У меня нет способа установить, является ли это фактической причиной моей проблемы, но решение работает.

ответ Натана на этой странице не работал для меня, потому что флажки Allow other network users[. ] были очищены для всех все равно.

Я отключил ICS таким образом:

Введите services.msc в меню Windows после нажатия кнопки «Пуск». Щелкните правой кнопкой мыши на services.msc , который появляется после завершения поиска, и Run as Administrator.

Найдите Internet Connection Sharing , остановите его и установите для запуска Manually .

KB ID 0001279В DtdВ 31/01/17

Problem

We had a firewall fail at work this week, as part of the rebuild the latest OS was put on it, version 9.7(1). I thought no more about it until I tried to VPN in and got this;



I used my Windows 10 VM and that connected fine, only my MacBook could not connect, this VPN tunnel is a big deal I need it to get onto client’s networks. I tried my other VPN connections and every one was fine, only the recently rebuilt one didn’t work? Ive seen OSX throw a wobbly with AnyConnect in the past so I did a complete uninstall, В deleted the opt/cisco folder and put on the latest version (4.4.00243 at time of writing) no change.

Connection attempt has failed due to server communication errors. Please retry the connection

A look in the client message history showed me this..



No valid certificates available for authentication.

I checked my certificates, and the certificate on the firewall both they, (and the certificate chain,) were fine.

Debugging AnyConnect gave NO OUTPUT at all, but debugging SSL showed me this;

Try Googling that and getting a result! In fact that’s probably what brought you here.

Solution

If you change a Cisco OS and things like this stop working normally it’s because they’ve dropped support for something that’s got a security hole in it. In the wake of the Poodle Exploit I assumed it was an SSL/TLS problem, but that wasn’t it.

I was in the right ball park though, and a bit of lateral thinking and SSL cipher problems I’ve had with ASDM, made me think, what if it’s SHA that’s been dropped because everyone is dropping SHA1 cause it’s the hashing algorithm of Satan?

Well as soon as I added a SHA1 ciphers back in, everything started working again!

Disclaimer: SHA1 is bad, where practical all cert ciphers should be at least SHA256

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hi all, I’m very new in AnyConnect and I’m doing something wrong.

If I navigate to https://myIP I can successfully log into the portal, download and install the AnyConnect Client and also CONNECT to the VPN.

But if I disconnect to the VPN, and try to login again through the try icon, I get a «connection attempt has failed».

So the only way I have to connect again is to navigate another time to the web portal and then, after login again, the VPN connection is successfully done.

Thanks for your help!

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Glad you worked it out. Please consider marking as answered and rating helpful post so this can be useful to others who may run into the same issues.

If this posts answers your question or is helpful, please consider rating it and/or marking as answered.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Are you using a Router or ASA has the VPN gateway? If you are using an ASA, check your DAP policy under Configuration, Network (Client) Access, Dynamic Access Policies. If there are policies there, chose the profile that is mapped to the tunnel you are connecting too and then go to «Access Method». Ensure «Web Portal» isn’t checked. If you want to be able use the portal and the client, you need to change it to one of the «Both» choices. If there is no DAP, we’ll have to dig a little deeper.

If this posts answers your question or is helpful, please consider rating it and/or marking as answered.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hello Christopher, thanks for your answer.

I’m using an ASA, and in DAP I only have the DfltAccess, and I changed the Access Method from Unchanged to Both, but I have the same problem.

Now I have a question (sorry if it is obvious), using the portal, I provide the login/passwd, but using only the client it doesn’t ask me for credentials, it only shows the certificate error (cause it is self-signed), and when I accept it, the connection fails.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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When you go to login through the AC client, what is in the «Connect To:» box? It may be an issue regarding the AC profile that gets downloaded after successfully logging in and downloading the client via web portal.

**Please remember to rate helpful posts as well as mark the question as ‘answered’ once your issue is resolved. This will help others to find your solution faster.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hi, in the connect To box there is the public IP of the ASA, so I think it might be correct. Then appears an Untrusted VPN Certificate warning, and after clicking «Connect Anyway» it shows the error.

I have the anyconnect-win-3.1.04063-k9.pkg client software, should I try a lower version?

Maybe I’ll try to create the certificate through a Windows Server CA and then import to ASA and to the client, so see if it solves the issue.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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First try this. Open the AnyConnect Client, go to the Preferrences tab, and make sure the box that says «Block Untrusted Servers» is NOT checked.

If this posts answers your question or is helpful, please consider rating it and/or marking as answered.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hi Christopher, that was the first I have to do in order to be able to connect when I connect to the VPN (through the web) for the first time. So I can confirm it is unchecked.

Thanks for the advice

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Do you have access to ASDM or a syslog server? It would be best if you could grab the exact error message in the logs when you try to connect.

Also, if you are using ASDM — make sure you have «Enable Cisco AnyConnect VPN Client Access on the intefaces in the table below» checked. Assuming you are using the «outside» interface, check that one and enable DTLS. Then click «Device Certificate» and make sure you have the correct certificate chosen for the SSL connection (probably the ASAs self signed certificate».

Make sure «Bypass interface access lists for inbound VPN sessions» is checked as well.

If this posts answers your question or is helpful, please cons />

Некоторые пользователи Windows 10, которые регулярно используют инструмент Cisco AnyConnect, сталкивались с ошибкой, которая называется «Сбой попытки подключения». Обычно это происходит, когда вы пытаетесь запустить виртуальную частную сеть (VPN), но не беспокойтесь, потому что есть способы решить эту проблему. Это также может быть связано с проблемой сети или ПК, и вас просят проверить подключение к Интернету и повторить попытку.



Надеюсь, однажды будет выпущено настоящее исправление, которое решит проблему раз и навсегда. Но пока мы предлагаем пока следовать нашему примеру.

1. Откройте Cisco AnyConnect в режиме совместимости
2. Отключить Microsoft Hyper V в Windows 10
3. Отключить общий доступ к подключению к Интернету

Давайте обсудим это более подробно.

1]Откройте Cisco AnyConnect в режиме совместимости

Для этого вы должны сначала создать первичный исполняемый файл. Не все знают, как это сделать, поэтому, если вы подпадаете под эту категорию, вам нужно открыть проводник и перейти в следующее место:

C: Program Files (x86) Cisco Cisco AnyConnect Secure Mobility Client

После доступа к папке щелкните правой кнопкой мыши vpnui.exe и выберите «Свойства».

Оттуда перейдите в Совместимость> Режим совместимости. Наконец, установите флажок «Запустить эту программу в режиме совместимости для.

Выберите из списка Windows 8 или Windows 7, затем нажмите «Применить»> «ОК».

Перезагрузите компьютер, затем попытайтесь запустить Cisco AnyConnect еще раз, чтобы увидеть, появляется ли по-прежнему ошибка попытки подключения.

2]Отключить Microsoft Hyper V в Windows 10

Еще один способ решить проблему сбоя попытки подключения — отключить Hyper V в Windows 10. Есть три простых шага, которые можно предпринять, чтобы отключить Hyper V.

Как вы увидите из статьи, есть несколько способов отключить Hyper V, поэтому используйте тот, который лучше всего подходит для вас.

3]Отключить общий доступ к подключению к Интернету

Если вышеперечисленные параметры не работают, следующим шагом будет отключить общий доступ к подключению к Интернету из Windows 10. Это довольно просто, и вы узнаете все, что вам нужно знать, прочитав каждое слово.

ЧИТАЙТЕ: Инструмент моделирования сети Cisco Packet Tracer и его бесплатные альтернативы.



.

Struggling with cisco anyconnect connection attempt has failed error?

If yes! Then don’t panic. Just stick around to get the most convenient and workable solutions

First of all will talk over the 3W’s.Didn’t get my point?

The three above mention W’s are: What, When and Why

The above error is a connection error. And it is claim by Cisco AnyConnect users. This error bothers its users while attempting to run a Virtual Private Network (VPN).And the issue has been observed by Windows 8.1 and Windows 10 users. There can be several reasons to occur the same but the one of the common culprit is absence of healthy internet connection and PC or network troubles.



As discussed earlier there can be several reasons for displaying the above error message. But we have collected some potential causes for the error.

Why I am facing cisco anyconnect connection attempt has failed error?

Confliction of Hyper-V

Hyper-V is famous for conflicting with VPN implementers like Cisco AnyConnect. Disabling Hyper-V might solve your problem.

When Internet Explorer is organised to Work Offline

It is common to encounter the error when internet explorer offline mode is enabled by default because IE and Cisco AnyConnect have some common functions. You can manage to fix the error by making few modifications thru Registry Files.

Windows Update KB 3034682

If you are encountering the error after Windows Update installed update KB 3034682, then it is quite possible that the update might comprises challenging security rule which is interfering with Cisco AnyConnect.

Enabled Connection Sharing

Network sharing can also raise the issue for you. So disable the Network Connection Sharing from Network Connections tab

Absent Hotfix for TLS Protocol Renegotiation

A number of users claim that few of the updates can create problems with Cisco AnyConnect. Hence a user needs to install every pending update just to avoid the inconsistency with the TLS protocol renegotiation as well as fallback performance.

Unsuitability with Windows 10

Unsuitability really affects SSL/TLS API which hinders the Cisco AnyConnect tool from collaborating with an outside server.

Recommended solutions for cisco anyconnect connection attempt has failed

Fix 1: Disable Network Connection Sharing



The very first thing you can try is disable Internet Connection Sharing. After disabling it you might resolve the issue.

Fix 2: Disable Microsoft Hyper-V

Kindly follow the below mention guidelines to disable Hyper-V from Windows Features menu:

• Press Windows + R key to open Run dialog box > in the appeared box, type “cpl” hit Enter key to pull up Programs and Features menu. Click on Yes to give permission if it was popped up by User Account Control (UAC).
• Under the Programs and Features menu >click on Turn Windows On or off> on the User Account Prompt, tap on Yes to give permission.
• Then, in the Windows Features screen, scroll down through list of Windows Features> uncheck the box related with Hyper-V > Tap on Ok to save changes
• When the Hyper-V is disabled >simply restart your system

Fix 3: Open Cisco AnyConnect via Compatibility Mode

You can try to run the Cisco AnyConnect in a compatibility Mode. Follow the below mention guidelines to do so:

• In the first step open File Explorer and go to the place where the Cisco AnyConnect Mobility Client folder is installed. Without installing the utility in custom location , you will get it in :

C:Program Files (x86)CiscoCisco AnyConnect Secure Mobility Client

• When you are in the right place, right-click on exe> click on Properties entry from context menu that is displayed
• Under the Properties screen , tap on Compatibility > navigate to Compatibility mode> check the box which says “Run this Program in Compatibility mode for”
• When the box is checked, a list of other Versions of Windows will be unblocked >select the list and tap on Windows 8
• Click on Apply and check whether the Cisco anyconnect connection attempt has failed resolved or not

Fix 4: Install the Pending Windows Update

Having a pending Windows Update can also be a possible reason to occur the error.so if you are not sure that every available Windows Update is installed on your work-station , you can follow the below mention guidelines to get out of the dilemma:

• On your keyboard press Windows + R key to open Run dialog box > type in “ms-settings:windowsupdate” and then hit Enter key to open Windows Update tab of Settings app
• Under the Windows Update Screen, click on check for updates. Then follow the on-screen instructions to install each Windows Update that is presently listed to be installed

Note: Install each kind of update comprising security and cumulative updates, not just important ones

• Pay attention if you have a number of pending updates, then you will be pop up to reboot before every update is installed. If this is the situation with you , reboot your system as per the guidelines but ensure to return to the screen at the succeeding startup and complete the installation of the rest of the updates
• Once when every pending update is installed on your PC, restart your system.

Fix 5: Disable Internet Explorer’s Ability to work Offline thru Registry Editor

It might be possible that you are facing the error due to IE be configured to work in offline mode. You can follow the below mention guidelines to disable IE’s ability to work in Offline Mode thru Registry Editor:

• To open Run dialog box , press Windows +R key >type in “regedit”> press ctrl+shift+Enter to open an important Registry Editor Prompt> once you are popped by User Account Control >click on Yes to give permission
• In the Registry Editor, utilize the left side menu and go to the below mention location:
• When you get the right location ,go down to right side section and place the GlobalUserOffline DWORD Key
• Then double-click on it > set the Base to Hexadecimal and the value to 0> click OK just for saving the changes
• Reboot your system and check whether the issue fix or not.

Conclusion

That’s it! Here my job is done and I tried my best to list down the complete information related to Cisco anyconnect connection attempt has failed. In case if your work-station is working slow or if it gets crashed regularly then it is recommended to scan it with an anti-malware tool. With just single scan of PC with a PC repair tool, majority of the errors automatically get fixed.

Kindly ensure to follow the suggestions one by one till you find the suitable one that works for you

If there anything that I missed out on or you have queries then feel free to share with us on Facebook and twitter page. Thanks for Reading.

На чтение 10 мин. Опубликовано 15.12.2019

Я пытаюсь подключиться к VPN на своем рабочем месте, но Cisco AnyConnect не работает после запуска соединения. Появляется ошибка с сообщением The VPN client failed to establish a connection , после чего появляется другая ошибка: AnyConnect was not able to establish a connection to the specified secure gateway. Please try connecting again. Я все пробовал. Переустановка, перезапуск и другие другие функции, такие как отключение ICS (общий доступ к подключению Интернета). Я попробовал это на своем ноутбуке, и веб-установщик работал нормально. Он установил клиента и подключился отлично, так что это должно быть что-то с этим ПК. Я пытаюсь понять это примерно в течение 5 часов, и Google не помогает. Вот история сообщений от AnyConnect:

[11/11/2013 1:55:55 PM] Ready to connect. [11/11/2013 1:57:05 PM] Contacting —.—.—.— [11/11/2013 1:57:07 PM] Please enter your username and password. [11/11/2013 1:57:08 PM] User credentials entered. [11/11/2013 1:57:08 PM] Establishing VPN session. [11/11/2013 1:57:09 PM] Checking for profile updates. [11/11/2013 1:57:09 PM] Checking for product updates. [11/11/2013 1:57:10 PM] Checking for customization updates. [11/11/2013 1:57:10 PM] Performing any required updates. [11/11/2013 1:57:15 PM] Establishing VPN session. [11/11/2013 1:57:15 PM] Establishing VPN — Initiating connection. [11/11/2013 1:57:16 PM] Disconnect in progress, please wait. [11/11/2013 1:57:29 PM] Connection attempt has failed. [11/11/2013 1:59:31 PM] Ready to connect.

Я попытался отключить брандмауэр и антивирус. Я не думал, что это будет иметь значение, поскольку мой ноутбук использует тот же брандмауэр и антивирус, и мне не нужно было его отключать. Мой ноутбук использует Windows 7 Home 64-bit, а мой компьютер с ошибкой использует 64-разрядную версию Windows 7 Ultimate.

6 ответов

Решением для меня было отключить общий доступ к подключению Интернета (ICS).

Чтобы устранить эту проблему:

1. Нажмите кнопку Windows Start .
2. Нажмите Control Panel .
3. Установите View by: в Category .
4. Нажмите View network status and tasks в Network and Internet .
5. Нажмите Change adapter settings .
6. Найдите Shared в столбце Status и щелкните его правой кнопкой мыши и нажмите Properties .
7. Перейдите на вкладку Sharing .
8. Снимите флажок Allow other network users to connect through this computer’s Internet connection .
9. Нажмите OK .
10. Переустановите Cisco AnyConnect.

Я вижу, что отключение ICS не работало для OP, но это работало для меня и многих других, по мнению различных форумов, кажется.

Это может быть проблема с ThinkPad. Lenovo опубликовала рекомендательную статью , указывающую, что их программное обеспечение Access Connections мешает AnyConnect. Решение состоит в отключении ICS. У меня нет способа установить, является ли это фактической причиной моей проблемы, но решение работает.

ответ Натана на этой странице не работал для меня, потому что флажки Allow other network users[. ] были очищены для всех все равно.

Я отключил ICS таким образом:

Введите services.msc в меню Windows после нажатия кнопки «Пуск». Щелкните правой кнопкой мыши на services.msc , который появляется после завершения поиска, и Run as Administrator.

Найдите Internet Connection Sharing , остановите его и установите для запуска Manually .

KB ID 0001279В DtdВ 31/01/17

Problem

We had a firewall fail at work this week, as part of the rebuild the latest OS was put on it, version 9.7(1). I thought no more about it until I tried to VPN in and got this;



I used my Windows 10 VM and that connected fine, only my MacBook could not connect, this VPN tunnel is a big deal I need it to get onto client’s networks. I tried my other VPN connections and every one was fine, only the recently rebuilt one didn’t work? Ive seen OSX throw a wobbly with AnyConnect in the past so I did a complete uninstall, В deleted the opt/cisco folder and put on the latest version (4.4.00243 at time of writing) no change.

Connection attempt has failed due to server communication errors. Please retry the connection

A look in the client message history showed me this..



No valid certificates available for authentication.

I checked my certificates, and the certificate on the firewall both they, (and the certificate chain,) were fine.

Debugging AnyConnect gave NO OUTPUT at all, but debugging SSL showed me this;

Try Googling that and getting a result! In fact that’s probably what brought you here.

Solution

If you change a Cisco OS and things like this stop working normally it’s because they’ve dropped support for something that’s got a security hole in it. In the wake of the Poodle Exploit I assumed it was an SSL/TLS problem, but that wasn’t it.

I was in the right ball park though, and a bit of lateral thinking and SSL cipher problems I’ve had with ASDM, made me think, what if it’s SHA that’s been dropped because everyone is dropping SHA1 cause it’s the hashing algorithm of Satan?

Well as soon as I added a SHA1 ciphers back in, everything started working again!

Disclaimer: SHA1 is bad, where practical all cert ciphers should be at least SHA256

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hi all, I’m very new in AnyConnect and I’m doing something wrong.

If I navigate to https://myIP I can successfully log into the portal, download and install the AnyConnect Client and also CONNECT to the VPN.

But if I disconnect to the VPN, and try to login again through the try icon, I get a «connection attempt has failed».

So the only way I have to connect again is to navigate another time to the web portal and then, after login again, the VPN connection is successfully done.

Thanks for your help!

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Glad you worked it out. Please consider marking as answered and rating helpful post so this can be useful to others who may run into the same issues.

If this posts answers your question or is helpful, please consider rating it and/or marking as answered.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Are you using a Router or ASA has the VPN gateway? If you are using an ASA, check your DAP policy under Configuration, Network (Client) Access, Dynamic Access Policies. If there are policies there, chose the profile that is mapped to the tunnel you are connecting too and then go to «Access Method». Ensure «Web Portal» isn’t checked. If you want to be able use the portal and the client, you need to change it to one of the «Both» choices. If there is no DAP, we’ll have to dig a little deeper.

If this posts answers your question or is helpful, please consider rating it and/or marking as answered.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hello Christopher, thanks for your answer.

I’m using an ASA, and in DAP I only have the DfltAccess, and I changed the Access Method from Unchanged to Both, but I have the same problem.

Now I have a question (sorry if it is obvious), using the portal, I provide the login/passwd, but using only the client it doesn’t ask me for credentials, it only shows the certificate error (cause it is self-signed), and when I accept it, the connection fails.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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When you go to login through the AC client, what is in the «Connect To:» box? It may be an issue regarding the AC profile that gets downloaded after successfully logging in and downloading the client via web portal.

**Please remember to rate helpful posts as well as mark the question as ‘answered’ once your issue is resolved. This will help others to find your solution faster.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hi, in the connect To box there is the public IP of the ASA, so I think it might be correct. Then appears an Untrusted VPN Certificate warning, and after clicking «Connect Anyway» it shows the error.

I have the anyconnect-win-3.1.04063-k9.pkg client software, should I try a lower version?

Maybe I’ll try to create the certificate through a Windows Server CA and then import to ASA and to the client, so see if it solves the issue.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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First try this. Open the AnyConnect Client, go to the Preferrences tab, and make sure the box that says «Block Untrusted Servers» is NOT checked.

If this posts answers your question or is helpful, please consider rating it and/or marking as answered.

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Hi Christopher, that was the first I have to do in order to be able to connect when I connect to the VPN (through the web) for the first time. So I can confirm it is unchecked.

Thanks for the advice

» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>

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Do you have access to ASDM or a syslog server? It would be best if you could grab the exact error message in the logs when you try to connect.

Also, if you are using ASDM — make sure you have «Enable Cisco AnyConnect VPN Client Access on the intefaces in the table below» checked. Assuming you are using the «outside» interface, check that one and enable DTLS. Then click «Device Certificate» and make sure you have the correct certificate chosen for the SSL connection (probably the ASAs self signed certificate».

Make sure «Bypass interface access lists for inbound VPN sessions» is checked as well.

If this posts answers your question or is helpful, please cons />

Introduction

This document describes a troubleshooting scenario which applies to applications that do not work through the Cisco AnyConnect VPN Client.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

The information in this document is based on a Cisco Adaptive Security Appliance (ASA) that runs Version 8.x.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Troubleshooting Process

This typical troubleshooting scenario applies to applications that do not work through the Cisco AnyConnect VPN Client for end-users with Microsoft Windows-based computers. These sections address and provide solutions to the problems:

• Installation and Virtual Adapter Issues
• Disconnection or Inability to Establish Initial Connection
• Problems with Passing Traffic
• AnyConnect Crash Issues
• Fragmentation / Passing Traffic Issues

Installation and Virtual Adapter Issues

Complete these steps:

Obtain the device log file:
Windows XP / Windows 2000:

Windowssetupapi.log

WindowsInfsetupapi.app.log 
WindowsInfsetupapi.dev.log 

If you see errors in the setupapi log file, you can turn up verbosity to 0x2000FFFF.

Windows XP / Windows 2000:

Documents and SettingsLocal SettingsTemp 

UsersAppDataLocalTemp 

If this is an automatic upgrade, this log is in the temp directory of the system:

WindowsTemp 

The filename is in this format: anyconnect-win-x.x.xxxx-k9-install-yyyyyyyyyyyyyy.log. Obtain the most recent file for the version of the client you want to install. The x.xxxx changes based on the version, such as 2.0.0343, and yyyyyyyyyyyyyy is the date and time of the install.

From a Command Prompt/DOS box, type this:
Windows XP / Windows 2000:

winmsd /nfo c:msinfo.nfo 

msinfo32 /nfo c:msinfo.nfo 

Note: After you type into this prompt, wait. It can take between two to five minutes for the file to complete.

systeminfo c:sysinfo.txt 

Refer to AnyConnect: Corrupt Driver Database Issue in order to debug the driver issue.

Disconnection or Inability to Establish Initial Connection

If you experience connection problems with the AnyConnect client, such as disconnections or the inability to establish an initial connection, obtain these files:

• The configuration file from the ASA in order to determine if anything in the configuration causes the connection failure: From the console of the ASA, type write net x.x.x.x:ASA-Config.txt where x.x.x.x is the IP address of a TFTP server on the network. OR From the console of the ASA, type show running-config . Let the configuration complete on the screen, then cut-and-paste to a text editor and save.
• The ASA event logs:
• In order to enable logging on the ASA for auth, WebVPN, Secure Sockets Layer (SSL), and SSL VPN Client (SVC) events, issue these CLI commands:

config terminal
logging enable
logging timestamp
logging class auth console debugging
logging class webvpn console debugging
logging class ssl console debugging
logging class svc console debugging

eventvwr.msc /s

If the user cannot connect with the AnyConnect VPN Client, the issue might be related to an established Remote Desktop Protocol (RDP) session or Fast User Switching enabled on the client PC. The user can see the AnyConnect profile settings mandate a single local user, but multiple local users are currently logged into your computer. A VPN connection will not be established error message error on the client PC. In order to resolve this issue, disconnect any established RDP sessions and disable Fast User Switching. This behavior is controlled by the Windows Logon Enforcement attribute in the client profile, however currently there is no setting that actually allows a user to establish a VPN connection while multiple users are logged on simultaneously on the same machine. Enhancement request CSCsx15061 was filed to address this feature.

Note: Make sure that port 443 is not blocked so the AnyConnect client can connect to the ASA.

When a user cannot connect the AnyConnect VPN Client to the ASA, the issue might be caused by an incompatibility between the AnyConnect client version and the ASA software image version. In this case, the user receives this error message: The installer was not able to start the Cisco VPN client, clientless access is not available .

In order to resolve this issue, upgrade the AnyConnect client version to be compatible with the ASA software image.

When you log in the first time to the AnyConnect, the login script does not run. If you disconnect and log in again, then the login script runs fine. This is the expected behavior.

When you connect the AnyConnect VPN Client to the ASA, you might receive this error: User not authorized for AnyConnect Client access, contact your administrator .

This error is seen when the AnyConnect image is missing from the ASA. Once the image is loaded to the ASA, AnyConnect can connect without any issues to the ASA.

This error can be resolved by disabling Datagram Transport Layer Security (DTLS). Go to Configuration > Remote Access VPN > Network (Client) Access > AnyConnect Connection Profiles and uncheck the Enable DTLS check box. This disables DTLS.

The dartbundle files show this error message when the user gets disconnected: TUNNELPROTOCOLDPDMGR_ERROR_NO_DPD_RESPONSE:The secure gateway failed to respond to Dead Peer Detection packets . This error means that the DTLS channel was torn due to Dead Peer Detection (DPD) failure. This error is resolved if you tweak the DPD keepalives and issue these commands:

webvpn 
svc keepalive 30 
svc dpd-interval client 80 
svc dpd-interval gateway 80

The svc keepalive and svc dpd-interval commands are replaced by the anyconnect keepalive and anyconnect dpd-interval commands respectively in ASA Version 8.4(1) and later as shown here:

webvpn
anyconnect ssl keepalive 15
anyconnect dpd-interval client 5
anyconnect dpd-interval gateway 5

Problems with Passing Traffic

When problems are detected with passing traffic to the private network with an AnyConnect session through the ASA, complete these data-gathering steps:

1. Obtain the output of the show vpn-sessiondb detail svc filter name ASA command from the console. If the output shows Filter Name: XXXXX , then gather the output for show access-list XXXXX. Verify that the access-list XXXXX does not block the intended traffic flow.
2. Export the AnyConnect statistics from AnyConnect VPN Client > Statistics > Details > Export (AnyConnect-ExportedStats.txt).
3. Check the ASA configuration file for nat statements. If Network Address Translation (NAT) is enabled, these must exempt data that returns to the client as a result of NAT. For example, to NAT exempt (nat 0) the IP addresses from the AnyConnect pool, use this on the CLI:

access-list in_nat0_out extended permit ip any 10.136.246.0 255.255.255.0
ip local pool IPPool1 10.136.246.1-10.136.246.254 mask 255.252.0.0
nat (inside) 0 access-list in_nat0_out

 !--- Route outside 0 0 is an incorrect statement. 
route outside 0 0 10.145.50.1
route inside 0 0 10.0.4.2 tunneled

ASA(config)# policy-map global_policy
ASA(config-pmap)# class inspection_default
ASA(config-pmap-c)# no inspect skinny

AnyConnect Crash Issues

Complete these data-gathering steps:

Ensure that the Microsoft Utility Dr Watson is enabled. In order to do this, choose Start > Run, and run Drwtsn32.exe. Configure this and click OK:

Number of Instructions : 25
Number of Errors To Save : 25
Crash Dump Type : Mini
Dump Symbol Table : Checked
Dump All Thread Contexts : Checked
Append To Existing Log File : Checked
Visual Notification : Checked
Create Crash Dump File : Checked

1. Choose Start > Run.
2. Enter:

eventvwr.msc /s

Fragmentation / Passing Traffic Issues

Some applications, such as Microsoft Outlook, do not work. However, the tunnel is able to pass other traffic such as small pings.

This can provide clues as to a fragmentation issue in the network. Consumer routers are particularly poor at packet fragmentation and reassembly.

Try a scaling set of pings in order to determine if it fails at a certain size. For example, ping -l 500, ping -l 1000, ping -l 1500, ping -l 2000.

It is recommended that you configure a special group for users that experience fragmentation, and set the SVC Maximum Transition Unit (MTU) for this group to 1200. This allows you to remediate users who experience this issue, but not impact the broader user base.

Problem

TCP connections hang once connected with AnyConnect.

Solution

In order to verify if your user has a fragmentation issue, adjust the MTU for AnyConnect clients on the ASA.

ASA(config)#group-policy attributes 
webvpn 
svc mtu 1200

Uninstall Automatically

Problem

The AnyConnect VPN Client uninstalls itself once the connection terminates. The client logs show that keep installed is set to disabled.

Solution

AnyConnect uninstalls itself despite that the keep installed option is selected on the Adaptive Security Device Manager (ASDM). In order to resolve this issue, configure the svc keep-installer installed command under group-policy.

Issue Populating the Cluster FQDN

Problem: AnyConnect client is pre-populated with the hostname instead of the cluster Fully Qualified Domain Name (FQDN).

When you have a load-balancing cluster set up for SSL VPN and the client attempts to connect to the cluster, the request is redirected to the node ASA and the client logs in successfully. After some time, when the client tries to connect to the cluster again, the cluster FQDN is not seen in the Connect to entries. Instead, the node ASA entry to which the client has been redirected is seen.

Solution

This occurs because the AnyConnect client retains the host name to which it last connected. This behavior is observed and a bug has been filed. For complete details about the bug, refer to Cisco bug ID CSCsz39019. The suggested workaround is to upgrade the Cisco AnyConnect to Version 2.5.

Backup Server List Configuration

A backup server list is configured in case the main server selected by the user is not reachable. This is defined in the Backup Server pane in the AnyConnect profile. Complete these steps:

1. Download the AnyConnect Profile Editor (registered customers only) . The file name is AnyConnectProfileEditor2_4_1.jar.
2. Create an XML file with the AnyConnect Profile Editor.
   1. Go to the server list tab.
   2. Click Add.
   3. Type the main server on the Hostname field.
   4. Add the backup server below the backup server list on the Host address field. Then, click Add.
   1. In ASDM, choose Configuration >Remote Access VPN >Network (Client) Access >AnyConnect Connection Profiles.
   2. Select your profile and click Edit.
   3. Click Manage from the Default Group Policy section.
   4. Select your group-policy and click Edit.
   5. Select Advanced and then click SSL VPN Client.
   6. Click New. Then, you need to type a name for the Profile and assign the XML file.

   AnyConnect: Corrupt Driver Database Issue

   This entry in the SetupAPI.log file suggests that the catalog system is corrupt:

   W239 driver signing class list «C:WINDOWSINFcertclas.inf» was missing or invalid. Error 0xfffffde5: Unknown Error. , assuming all device classes are subject to driver signing policy.

   You can also receive this error message: Error(3/17): Unable to start VA, setup shared queue, or VA gave up shared queue .

   You can receive this log on the client: «The VPN client driver has encountered an error» .

   Repair

   This issue is due to Cisco bug ID CSCsm54689. In order to resolve this issue, make sure that Routing and Remote Access Service is disabled before you start AnyConnect. If this does not resolve the issue, complete these steps:

   1. Open a command prompt as an Administrator on the PC (elevated prompt on Vista).
   2. Run net stop CryptSvc .
   3. Run:

   esentutl /p%systemroot%System32catroot2
   catdb

   Failed Repair

   If the repair fails, complete these steps:

   1. Open a command prompt as an Administrator on the PC (elevated prompt on Vista).
   2. Run net stop CryptSvc .
   3. Rename the %WINDIR%system32catroot2 to catroot2_old directory.
   4. Exit the command prompt.
   5. Reboot.

   Analyze the Database

   You can analyze the database at any time in order to determine if it is valid.

   1. Open a command prompt as an Admimistrator on the PC.
   2. Run:

   esentutl /g%systemroot%System32catroot2
   catdb

   Error Messages

   Error: Unable to Update the Session Management Database

   While the SSL VPN is connected through a web browser, the Unable to Update the Session Management Database. error message appears, and the ASA logs show %ASA-3-211001: Memory allocation Error. The adaptive security appliance failed to allocate RAM system memory .

   Solution 1

   This issue is due to Cisco bug ID CSCsm51093. In order to resolve this issue, reload the ASA or upgrade the ASA software to the interim release mentioned in the bug. Refer to Cisco bug ID CSCsm51093 for more information.

   Solution 2

   This issue can also be resolved if you disable threat-detection on ASA if threat-detection is used.

   Error: «Module c:Program FilesCiscoCisco AnyConnect VPN Clientvpnapi.dll failed to register»

   When you use the AnyConnect client on laptops or PCs, an error occurs during the install:

   "Module C:Program FilesCiscoCisco AnyConnect VPN Clientvpnapi.dll failed
   to register. "

   When this error is encountered, the installer cannot move forward and the client is removed.

   Solution

   These are the possible workarounds to resolve this error:

   • The latest AnyConnect client is no longer officially supported with Microsoft Windows 2000. It is a registry problem with the 2000 computer.
   • Remove the VMware applications. Once AnyConnect is installed, VMware applications can be added back to the PC.
   • Add the ASA to their trusted sites.
   • Copy these files from the ProgramFilesCiscoCiscoAnyconnect folder to a new folder and run the regsvr32 vpnapi.dll command prompt:
     • vpnapi.dll
     • vpncommon.dll
     • vpncommoncrypt.dll

     The log message related to this error on the AnyConnect client looks similar to this:

     DEBUG: Error 2911: Could not remove the folderC:Program FilesCiscoCisco AnyConnect
     VPN Client.
     The installer has encountered an unexpected error installing this package. This may
     indicate a problem with this package. The error code is 2911. The arguments are:
     C:Program FilesCiscoCisco AnyConnect VPN Client, ,
     DEBUG: Error 2911: Could not remove the folder C:Program FilesCiscoCisco AnyConnect
     VPN Client.
     The installer has encountered an unexpected error installing this package. This may
     indicate a problem with this package. The error code is 2911. The arguments are:
     C:Program FilesCiscoCisco AnyConnect VPN Client, ,
     Info 1721. There is a problem with this Windows Installer package. A program required for
     this install to complete could not be run. Contact your support personnel or package
     vendor. Action: InstallHelper.exe, location: C:Program FilesCiscoCisco AnyConnect VPN
     ClientInstallHelper.exe, command: -acl "C:Documents and SettingsAll UsersApplication
     DataCiscoCisco AnyConnect VPN Client" -r

     Error: «An error was received from the secure gateway in response to the VPN negotiation request. Please contact your network administrator»

     When clients try to connect to the VPN with the Cisco AnyConnect VPN Client, this error is received.

     This message was received from the secure gateway:

     «Illegal address class» or «Host or network is 0» or «Other error»

     Solution

     The issue occurs because of the ASA local IP pool depletion. As the VPN pool resource is exhausted, the IP pool range must be enlarged.

     Cisco bug ID is CSCsl82188 is filed for this issue. This error usually occurs when the local pool for address assignment is exhausted, or if a 32-bit subnet mask is used for the address pool. The workaround is to expand the address pool and use a 24-bit subnet mask for the pool.

     Error: Session could not be established. Session limit of 2 reached.

     When you try to connect more than two clients with the AnyConnect VPN Client, you receive the Login Failed error message on the Client and a warning message in the ASA logs that states Session could not be established. Session limit of 2 reached . I have the AnyConnect essential license on the ASA, which runs Version 8.0.4.

     Solution 1

     This error occurs because the AnyConnect essential license is not supported by ASA version 8.0.4. You need to upgrade the ASA to version 8.2.2. This resolves the error.

     Note: Regardless of the license used, if the session limit is reached, the user will receive the login failed error message.

     Solution 2

     This error can also occur if the vpn-sessiondb max-anyconnect-premium-or-essentials-limit session-limit command is used to set the limit of VPN sessions permitted to be established. If the session-limit is set as two, then the user cannot establish more than two sessions even though the license installed supports more sessions. Set the session-limit to the number of VPN sessions required in order to avoid this error message.

     Error: Anyconnect not enabled on VPN server while trying to connect anyconnect to ASA

     You receive the Anyconnect not enabled on VPN server error message when you try to connect AnyConnect to the ASA.

     Solution

     This error is resolved if you enable AnyConnect on the outside interface of the ASA with ASDM. For more information on how to enable AnyConnect on the outside interface, refer to Configure Clientless SSL VPN (WebVPN) on the ASA.

     Error:- %ASA-6-722036: Group client-group User xxxx IP x.x.x.x Transmitting large packet 1220 (threshold 1206)

     The %ASA-6-722036: Group < client-group >User < xxxx >IP < x.x.x.x>Transmitting large packet 1220 (threshold 1206) error message appears in the logs of the ASA. What does this log mean and how is this resolved?

     Solution

     This log message states that a large packet was sent to the client. The source of the packet is not aware of the MTU of the client. This can also be due to compression of non-compressible data. The workaround is to turn off the SVC compression with the svc compression none command. This resolves the issue.

     Error: The secure gateway has rejected the agent’s vpn connect or reconnect request.

     When you connect to the AnyConnect Client, this error is received: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires re-authentication and must be started manually. Please contact your network administrator if this problem persists. The following message was received from the secure gateway: no assigned address» .

     This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the connection attempt. A new connection attempt to the same or another secure gateway is needed, which requires re-authentication. The following message was received from the secure gateway:Host or network is 0» .

     This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» .

     Solution

     The router was missing pool configuration after reload. You need to add the concerned configuration back to the router.

     Router#show run | in pool
     
     ip local pool SSLPOOL 192.168.30.2 192.168.30.254 
     svc address-pool SSLPOO

     The «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» error occurs when the AnyConnect mobility license is missing. Once the license is installed, the issue is resolved.

     Error: «Unable to update the session management database»

     When you try to authenticate in WebPortal, this error message is received: «Unable to update the session management database» .

     Solution

     This problem is related to memory allocation on the ASA. This issue is mostly encountered when the ASA Version is 8.2.1. Originally, this requires a 512MB RAM for its complete functionality.

     As a permanent workaround, upgrade the memory to 512MB.

     As a temporary workaround, try to free the memory with these steps:

     1. Disable the threat-detection.
     2. Disable SVC compression.
     3. Reload the ASA.

     Error: «The VPN client driver has encountered an error»

     This is an error message obtained on the client machine when you try to connect to AnyConnect.

     Solution

     In order to resolve this error, complete this procedure in order to manually set the AnyConnect VPN agent to Interactive:

     1. Right-click My Computer > Manage > Services and Applications > Services > and select the Cisco AnyConnect VPN Agent.
     2. Right-click Properties, then log on, and select Allow service to interact with the desktop. This sets the registry Type value DWORD to 110 (default is 010) for the HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesvpnagent. Note: If this is to be used, then the preference would be to use the .MST transform in this instance. This is because if you set this manually with these methods, it requires that this be set after every install/upgrade process. This is why there is a need to identify the application that causes this problem. When Routing and Remote Access Service (RRAS) is enabled on the Windows PC, AnyConnect fails with the The VPN client driver has encountered an error. error message. In order to resolve this issue, make sure that Routing and RRAS is disabled before starting AnyConnect. Refer to Cisco bug ID CSCsm54689 for more information.

     Error: «Unable to process response from xxx.xxx.xxx.xxx»

     AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Unable to process response from xxx.xxx.xxx.xxx» .

     Solution

     In order to resolve this error, try these workarounds:

     • Remove WebVPN from the ASA and reenable it.
     • Change the port number to 444 from the existing 443 and reenable it on 443.

     For more information on how to enable WebVPN and change the port for WebVPN, refer to this Solution.

     Error: «Login Denied , unauthorized connection mechanism , contact your administrator»

     AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Login Denied , unauthorized connection mechanism , contact your administrator» .

     Solution

     This error message occurs mostly because of configuration issues that are improper or an incomplete configuration. Check the configuration and make sure it is as required to resolve the issue.

     Error: «Anyconnect package unavailable or corrupted. Contact your system administrator»

     This error occurs when you try to launch the AnyConnect software from a Macintosh client in order to connect to an ASA.

     Solution

     In order to resolve this, complete these steps:

     1. Upload the Macintosh AnyConnect package to the flash of the ASA.
     2. Modify the WebVPN configuration in order to specify the AnyConnect package that is used.

     webvpn 
     svc image disk0:/anyconnect-macosx-i386-2.3.2016-k9.pkg 2 
     svc image disk0:/anyconnect-macosx-powerpc-2.3.2016-k9.pkg 3

     The svc image command is replaced by the anyconnect image command in ASA Version 8.4(1) and later as shown here:

     hostname(config)#webvpn
     hostname(config-webvpn)#anyconnect image disk0:/
     anyconnect-win-3.0.0527-k9.pkg 1
     hostname(config-webvpn)#anyconnect image disk0:/
     anyconnect-macosx-i386-3.0.0414-k9.pkg 2

     Error: «The AnyConnect package on the secure gateway could not be located»

     This error is caused on the user’s Linux machine when it tries to connect to the ASA by launching AnyConnect. Here is the complete error:

     "The AnyConnect package on the secure gateway could not be located. You may
     be experiencing network connectivity issues. Please try connecting again."

     Solution

     In order to resolve this error message, verify whether the Operating System (OS) that is used on the client machine is supported by the AnyConnect client.

     If the OS is supported, then verify if the AnyConnect package is specified in the WebVPN configuration or not. See the Anyconnect package unavailable or corrupted section of this document for more information.

     Error: «Secure VPN via remote desktop is not supported»

     Users are unable to perform a remote desktop access. The Secure VPN via remote desktop is not supported error message appears.

     Solution

     This issue is due to these Cisco bug IDs: CSCsu22088 and CSCso42825. If you upgrade the AnyConnect VPN Client, it can resolve the issue. Refer to these bugs for more information.

     Error: «The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established»

     When you attempt to VPN to the ASA 5505, the The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established error message appears.

     Solution

     In order to resolve this error, you must disable the Federal Information Processing Standards (FIPS) in the AnyConnect Local Policy file. This file can usually be found at C:ProgramDataCiscoCisco AnyConnect VPN ClientAnyConnectLocalPolicy.xml . If this file is not found in this path, then locate the file at a different directory with a path such as C:Documents and SettingsAll UsersApplication DataCisco AnyConnectVPNClientAnyConnectLocalPolicy.xml . Once you locate the xml file, make changes to this file as shown here:

     Change the phrase:

     Then, restart the computer. Users must have administrative permissions in order to modify this file.

     Error: «Certificate Validation Failure»

     Users are unable to launch AnyConnect and receive the Certificate Validation Failure error.

     Solution

     Certificate authentication works differently with AnyConnect compared to the IPSec client. In order for certificate authentication to work, you must import the client certificate to your browser and change the connection profile in order to use certificate authentication. You also need to enable this command on your ASA in order to allow SSL client-certificates to be used on the outside interface:

     ssl certificate-authentication interface outside port 443

     Error: «VPN Agent Service has encountered a problem and needs to close. We are sorry for the inconvenience»

     When AnyConnect Version 2.4.0202 is installed on a Windows XP PC, it stops at updating localization files and an error message shows that the vpnagent.exe fails.

     Solution

     This behavior is logged in Cisco bug ID CSCsq49102. The suggested workaround is to disable the Citrix client.

     Error: «This installation package could not be opened. Verify that the package exists»

     When AnyConnect is downloaded, this error message is received:

     «Contact your system administrator. The installer failed with the following error: This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.»

     Solution

     Complete these steps in order to fix this issue:

     1. Remove any anti-virus software.
     2. Disable the Windows firewall.
     3. If neither Step 1 or 2 helps, then format the machine and then install.
     4. If the problem still persists, open a TAC Case.

     Error: «Error applying transforms. Verify that the specified transform paths are valid.»

     This error message is recieved during the auto-download of AnyConnect from the ASA:

     "Contact your system administrator. The installer failed with the following error:
     Error applying transforms. Verify that the specified transform paths are valid."

     This is the error message received when connecting with AnyConnect for MacOS:

     "The AnyConnect package on the secure gateway could not be located. You may be
     experiencing network connectivity issues. Please try connecting again."

     Solution

     Complete one of these workarounds in order to resolve this issue:

     1. The root cause of this error might be due to a corrupted MST translation file (for example, imported). Perform these steps to fix this:
        1. Remove the MST translation table.
        2. Configure the AnyConnect image for MacOS in the ASA.

        If neither of these workarounds resolve the issue, contact Cisco Technical Support.

        Error: «The VPN client driver has encountered an error»

        This error is received:

        The VPN client driver has encountered an error when connecting through Cisco
        AnyConnect Client.

        Solution

        This issue can be resolved when you uninstall the AnyConnect Client, and then remove the anti-virus software. After this, reinstall the AnyConnect Client. If this resolution does not work, then reformat the PC in order to fix this issue.

        Error: «A VPN reconnect resulted in different configuration setting. The VPN network setting is being re-initialized. Applications utilizing the private network may need to be restored.»

        This error is received when you try to launch AnyConnect:

        "A VPN reconnect resulted in different configuration setting. The VPN network
        setting is being re-initialized. Applications utilizing the private network may
        need to be restarted."

        Solution

        In order to resolve this error, use this:

        group-policy attributes 
        webvpn 
        svc mtu 1200

        The svc mtu command is replaced by the anyconnect mtu command in ASA Version 8.4(1) and later as shown here:

        hostname(config)#group-policy attributes
        
        hostname(config-group-policy)#webvpn
        hostname(config-group-webvpn)#anyconnect mtu 500

        AnyConnect Error While Logging In

        Problem

        The AnyConnect receives this error when it connects to the Client:

        The VPN connection is not allowed via a local proxy. This can be changed
        through AnyConnect profile settings.

        Solution

        The issue can be resolved if you make these changes to the AnyConnect profile:

        Add this line to the AnyConnect profile:

        IgnoreProxyAllowLocalProxyConnections>
        false

        IE Proxy Setting is Not Restored after AnyConnect Disconnect on Windows 7

        Problem

        In Windows 7, if the IE proxy setting is configured for Automatically detect settings and AnyConnect pushes down a new proxy setting, the IE proxy setting is not restored back to Automatically detect settings after the user ends the AnyConnect session. This causes LAN issues for users who need their proxy setting configured for Automatically detect settings.

        Solution

        This behavior is logged in Cisco bug ID CSCtj51376. The suggested workaround is to upgrade to AnyConnect 3.0.

        Error: AnyConnect Essentials can not be enabled until all these sessions are closed.

        This error message is received on Cisco ASDM when you attempt to enable the AnyConnect Essentials license:

        There are currently 2 clientless SSL VPN sessions in progress. AnyConnect
        Essentials can not be enabled until all these sessions are closed.

        Solution

        This is the normal behavior of the ASA. AnyConnect Essentials is a separately licensed SSL VPN client. It is entirely configured on the ASA and provides the full AnyConnect capability, with these exceptions:

        • No Cisco Secure Desktop (CSD) (including HostScan/Vault/Cache Cleaner)
        • No clientless SSL VPN
        • Optional Windows Mobile Support

        This license cannot be used at the same time as the shared SSL VPN premium license. When you need to use one license, you need to disable the other.

        Error: Connection tab on Internet option of Internet Explorer hides after getting connected to the AnyConnect client.

        The connection tab on the Internet option of Internet Explorer hides after you are connected to the AnyConnect client.

        Solution

        This is due to the msie-proxy lockdown feature. If you enable this feature, it hides the Connections tab in Microsoft Internet Explorer for the duration of an AnyConnect VPN session. If you disable the feature, it leaves the display of the Connections tab unchanged.

        Error: Few users getting Login Failed Error message when others are able to connect successfully through AnyConnect VPN

        A few users receive the Login Failed Error message when others can connect successfully through the AnyConnect VPN.

        Solution

        This issue can be resolved if you make sure the do not require pre-authentication checkbox is checked for the users.

        Error: The certificate you are viewing does not match with the name of the site you are trying to view.

        During the AnyConnect profile update, an error is shown that says the certificate is invalid. This occurs with Windows only and at the profile update phase. The error message is shown here:

        The certificate you are viewing does not match with the name of the site
        you are trying to view.

        Solution

        This can be resolved if you modify the server list of the AnyConnect profile in order to use the FQDN of the certificate.

        This is a sample of the XML profile:

         
         
        vpn1.ccsd.net
         
         
        

        Note: If there is an existing entry for the Public IP address of the server such as , then remove it and retain only the FQDN of the server (for example, but not ).

        Cannot Launch AnyConnect From the CSD Vault From a Windows 7 Machine

        When the AnyConnect is launched from the CSD vault, it does not work. This is attempted on Windows 7 machines.

        Solution

        Currently, this is not possible because it is not supported.

        AnyConnect Profile Does Not Get Replicated to the Standby After Failover

        The AnyConnect 3.0 VPN client with ASA Version 8.4.1 software works fine. However, after failover, there is no replication for the AnyConnect profile related configuration.

        Solution

        This problem has been observed and logged under Cisco bug ID CSCtn71662. The temporary workaround is to manually copy the files to the standby unit.

        AnyConnect Client Crashes if Internet Explorer Goes Offline

        When this occurs, the AnyConnect event log contains entries similar to these:

        Description : Function:
        CAdapterNetworkStateIfc::SetConnectedStateToConnected
        File: .AdapterNetworkStateIfc.cpp
        Line: 147
        Invoked Function: InternetSetOption
        Return Code: 12010 (0x00002EEA)
        Description: The length is incorrect for the option type
        Description : Function: CTransportWinHttp::InitTransport
        File: .CTransportWinHttp.cpp
        Line: 252
        Invoked Function: CConnectedStateIfc::SetConnectedStateToConnected
        Return Code: -25362420 (0xFE7D000C)
        Description: CADAPTERNETWORKSTATEIFC_ERROR_SET_OPTION

        Solution

        This behavior is observed and logged under Cisco bug ID CSCtx28970. In order to resolve this, quit the AnyConnect application and relaunch. The connection entries reappear after relaunch.

        Error Message: TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER

        The AnyConnect client fails to connect and the Unable to establish a connection error message is received. In the AnyConnect event log, the TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER error is found.

        Solution

        This occurs when the headend is configured for split-tunneling with a very large split-tunnel list (approximately 180-200 entries) and one or more other client attributes are configured in the group-policy, such as dns-server.

        In order to resolve this issue, complete these steps:

        1. Reduce the number of entries in the split-tunnel list.
        2. Use this configuration in order to disable DTLS:

        group-policy groupName attributes 
        webvpn 
        svc dtls none

        For more information, refer to Cisco bug ID CSCtc41770.

        Error Message: «Connection attempt has failed due to invalid host entry»

        The Connection attempt has failed due to invalid host entry error message is received while AnyConnect is authenticated with the use of a certificate.

        Solution

        In order to resolve this issue, try either of these possible solutions:

        • Upgrade the AnyConnect to Version 3.0.
        • Disable Cisco Secure Desktop on your computer.

        For more information, refer to Cisco bug ID CSCti73316.

        Error: «Ensure your server certificates can pass strict mode if you configure always-on VPN»

        When you enable the Always-On feature on AnyConnect, the Ensure your server certificates can pass strict mode if you configure always-on VPN error message is received.

        Solution

        This error message implies that if you want to use the Always-On feature, you need a valid sever certificate configured on the headend. Without a valid server certificate, this feature does not work. Strict Cert Mode is an option that you set in the AnyConnect local policy file in order to ensure the connections use a valid certificate. If you enable this option in the policy file and connect with a bogus certificate, the connection fails.

        Error: «An internal error occurred in the Microsoft Windows HTTP Services»

        This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

        ******************************************
        Date : 03/25/2014
        Time : 09:52:21
        Type : Error
        Source : acvpnui
        Description : Function: CTransportWinHttp::SendRequest
        File: .CTransportWinHttp.cpp
        Line: 1170
        Invoked Function: HttpSendRequest
        Return Code: 12004 (0x00002EE4)
        Description: An internal error occurred in the Microsoft 
        Windows HTTP Services 
        *****************************************
        Date : 03/25/2014
        Time : 09:52:21
        Type : Error
        Source : acvpnui
        Description : Function: ConnectIfc::connect
        File: .ConnectIfc.cpp
        Line: 472
        Invoked Function: ConnectIfc::sendRequest
        Return Code: -30015443 (0xFE36002D)
        Description: CTRANSPORT_ERROR_CONN_UNKNOWN
        ******************************************
        Date : 03/25/2014
        Time : 09:52:21
        Type : Error
        Source : acvpnui
        Description : Function: ConnectIfc::TranslateStatusCode
        File: .ConnectIfc.cpp
        Line: 2999
        Invoked Function: ConnectIfc::TranslateStatusCode
        Return Code: -30015443 (0xFE36002D)
        Description: CTRANSPORT_ERROR_CONN_UNKNOWN
        Connection attempt failed. Please try again.
        ******************************************

        Also, refer to the event viewer logs on the Windows machine.

        Solution

        This could be caused due to a corrupted Winsock connection. Reset the connection from the command promt with this command and restart your windows machine:

        netsh winsock reset

        Refer to the How to determine and to recover from Winsock2 corruption in Windows Server 2003, in Windows XP, and in Windows Vista knowledge base article for more information.

        Error: «The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.»

        This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

        ******************************************
        Date : 10/27/2014
        Time : 16:29:09
        Type : Error
        Source : acvpnui
        Description : Function: CTransportWinHttp::handleRequestError
        File: .CTransportWinHttp.cpp
        Line: 854
        The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.
        ******************************************
        Date : 10/27/2014
        Time : 16:29:09
        Type : Error
        Source : acvpnui
        Description : Function: CTransportWinHttp::SendRequest
        File: .CTransportWinHttp.cpp
        Line: 1199
        Invoked Function: CTransportWinHttp::handleRequestError
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE
        ******************************************
        Date : 10/27/2014
        Time : 16:29:09
        Type : Error
        Source : acvpnui
        Description : Function: ConnectIfc::TranslateStatusCode
        File: .ConnectIfc.cpp
        Line: 3026
        Invoked Function: ConnectIfc::TranslateStatusCode
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE
        Connection attempt failed. Please try again.
        ******************************************

        Solution

        Windows 8.1 does not support RC4 according to the following KB update:

        Either configure DES/3DES ciphers for SSL VPN on the ASA using the command «ssl encryption 3des-sha1 aes128-sha1 aes256-sha1 des-sha1» OR edit the Windows Registry file on the client machine as mentioned below:

        Related Information

        • Cisco ASA 5500 Series Adaptive Security Appliances
        • AnyConnect VPN Client FAQ
        • Cisco Secure Desktop (CSD) FAQ
        • Cisco AnyConnect VPN Client
        • Technical Support & Documentation — Cisco Systems

        Добрый день, ни как не могу подключиться по ssl с помощью anyconnect 4.000061 с ОС Windows 8.1. С Android и Windows 7 нет проблем с подключение все работает.
        Может кто сталкивался, не пойму в какую сторону копать? А то я чет приуныл совсем

        Cisco IOS Software, 2800 Software (C2800NM-ADVSECURITYK9-M), Version 15.1(4)M9, RELEASE SOFTWARE (fc3)

        Настройки
        ip local pool SSLPool2 10.222.22.5 10.222.22.50

        webvpn gateway WebKspGate
        ip address Мой_адрес port 443
        http-redirect port 80
        ssl encryption rc4-md5
        ssl trustpoint vlg-ksp-gw1.corp.kspvolg.ru
        inservice
        !
        webvpn install svc usbflash0:/webvpn/anyconnect-win-4.0.00061-k9.pkg sequence 1
        !
        webvpn context SSLVPN
        title «The Chamber of Control and Accounts of Volgograd»
        login-photo none
        logo file /webvpn/logo1.gif
        color #003366
        secondary-color #346699
        title-color #003366
        text-color #ffd700
        ssl authenticate verify all
        !
        acl «webvpn-acl»
        permit ip 192.168.70.0 255.255.255.0 192.168.70.0 255.255.255.0
        permit ip 10.222.22.0 255.255.255.192 192.168.70.0 255.255.255.0
        !
        login-message «Enter your username and password»
        !
        policy group sslpolicy
        url-list «KSPpages»
        functions svc-enabled
        filter tunnel webvpn-acl
        svc address-pool «SSLPool2» netmask 255.255.255.192
        svc default-domain «Mydomain»
        svc keep-client-installed
        svc rekey method new-tunnel
        svc split include 192.168.70.0 255.255.255.0
        svc split include 10.222.22.0 255.255.255.192
        default-group-policy sslpolicy
        aaa authentication list default
        gateway WebKspGate
        max-users 40
        inservice
        !
        end

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : An SSL VPN connection to My_address has been requested by the user.

        Date : 04/16/2015
        Time : 11:40:56
        Type : Warning
        Source : acvpnui

        Description : Function: ProfileMgr::getProfileNameFromHost
        File: .ProfileMgr.cpp
        Line: 808
        No profile available for host My_address .

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Function: ProfileMgr::getHostInitSettings
        File: .ProfileMgr.cpp
        Line: 888
        Profile () not found. Using default settings.

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Function: ProfileMgr::loadProfiles
        File: .ProfileMgr.cpp
        Line: 100
        No profile is available.

        Date : 04/16/2015
        Time : 11:40:56
        Type : Warning
        Source : acvpnui

        Description : Function: ProfileMgr::getProfileNameFromHost
        File: .ProfileMgr.cpp
        Line: 808
        No profile available for host My_address .

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Using default preferences. Some settings (e.g. certificate matching) may not function as expected if a local profile is expected to be used. Verify that the selected host is in the server list section of the profile and that the profile is configured on the secure gateway.

        Date : 04/16/2015
        Time : 11:40:56
        Type : Warning
        Source : acvpnui

        Description : Function: ProfileMgr::getProfileNameFromHost
        File: .ProfileMgr.cpp
        Line: 808
        No profile available for host My_address .

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Function: ProfileMgr::getHostInitSettings
        File: .ProfileMgr.cpp
        Line: 888
        Profile () not found. Using default settings.

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Function: ApiCert::getCertList
        File: .ApiCert.cpp
        Line: 339
        Number of certificates found: 0

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Message type information sent to the user:
        Contacting My_address .

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnui

        Description : Initiating VPN connection to the secure gateway https:// My_address

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnagent

        Description : Using default preferences. Some settings (e.g. certificate matching) may not function as expected if a local profile is expected to be used. Verify that the selected host is in the server list section of the profile and that the profile is configured on the secure gateway.

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnagent

        Description : Function: CMainThread::processConnectNotification
        File: .MainThread.cpp
        Line: 11640
        Received connect notification (host My_address , profile N/A)

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnagent

        Description : Function: CHostLocator::buildHostLocator
        File: .UtilityHostLocator.cpp
        Line: 332
        FQDN: My_address .static-business.volgograd.ertelecom.ru

        Date : 04/16/2015
        Time : 11:40:56
        Type : Error
        Source : acvpnagent

        Description : Function: CAutoProxy::GetAutoProxyStrings
        File: .ProxyAutoProxy.cpp
        Line: 139
        Invoked Function: WinHttpGetProxyForUrl
        Return Code: 12180 (0x00002F94)
        Description: WINDOWS_ERROR_CODE
        SG URL https:// My_address .static-business.volgograd.ertelecom.ru:443

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnagent

        Description : Function: CProxyCommonInfo::getProxyStrings
        File: .ProxyProxyCommonInfo.cpp
        Line: 802
        Invoked Function: CAutoProxy::GetAutoProxyStrings
        Return Code: -30539766 (0xFE2E000A)
        Description: AUTOPROXY_ERROR_OPEN_FAILED

        Date : 04/16/2015
        Time : 11:40:56
        Type : Information
        Source : acvpnagent

        Description : Function: CMainThread::respondToConnectNotification
        File: .MainThread.cpp
        Line: 4950
        The requested VPN connection to My_address will target the following IP protocols and addresses: primary — IPv4 (address My_address ), secondary — N/A.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Warning
        Source : acvpnui

        Description : Function: CWinHttpUtils::LogSecureStatusErrorFlagAsErrorCode
        File: .UtilityWinHttpUtils.cpp
        Line: 126
        WinHttp certificate error: ERROR_WINHTTP_SECURE_CHANNEL_ERROR

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: CTransportWinHttp::handleServerCertCheck
        File: .CTransportWinHttp.cpp
        Line: 2325
        Invoked Function: ::WinHttpQueryOption
        Return Code: 12019 (0x00002EF3)
        Description: Дескриптор имеет неправильное состояние для запрошенного действия

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: CTransportWinHttp::SendRequest
        File: .CTransportWinHttp.cpp
        Line: 1239
        Invoked Function: HttpSendRequest
        Return Code: 12175 (0x00002F8F)
        Description: Произошла ошибка безопасности

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: CTransportWinHttp::handleRequestError
        File: .CTransportWinHttp.cpp
        Line: 885
        The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: CTransportWinHttp::SendRequest
        File: .CTransportWinHttp.cpp
        Line: 1247
        Invoked Function: CTransportWinHttp::handleRequestError
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectIfc::sendRequest
        File: .ConnectIfc.cpp
        Line: 3209
        Invoked Function: CTransport::SendRequest
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectIfc::connect
        File: .ConnectIfc.cpp
        Line: 481
        Invoked Function: ConnectIfc::sendRequest
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectIfc::TranslateStatusCode
        File: .ConnectIfc.cpp
        Line: 3026
        Invoked Function: ConnectIfc::TranslateStatusCode
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE
        Connection attempt failed. Please try again.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectMgr::doConnectIfcConnect
        File: .ConnectMgr.cpp
        Line: 1972
        Invoked Function: ConnectIfc::connect
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE

        Date : 04/16/2015
        Time : 11:41:06
        Type : Information
        Source : acvpnui

        Description : Message type warning sent to the user:
        Connection attempt has failed.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectMgr::processIfcData
        File: .ConnectMgr.cpp
        Line: 2651
        Content type (unknown) received.
        Response type (failed) from My_address :

        Date : 04/16/2015
        Time : 11:41:06
        Type : Information
        Source : acvpnui

        Description : Function: ConnectMgr::processIfcData
        File: .ConnectMgr.cpp
        Line: 2777
        Invoked Function: ConnectMgr::processIfcData
        Return Code: -30015418 (0xFE360046)
        Description: CTRANSPORT_ERROR_SECURE_CHANNEL_FAILURE
        Connection attempt failed. Please try again.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Information
        Source : acvpnui

        Description : Message type error sent to the user:
        Connection attempt failed. Please try again.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectMgr::connect
        File: .ConnectMgr.cpp
        Line: 2059
        ConnectMgr::processIfcData failed

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectMgr::initiateConnect
        File: .ConnectMgr.cpp
        Line: 1185
        Connection failed.

        Date : 04/16/2015
        Time : 11:41:06
        Type : Information
        Source : acvpnagent

        Description : Function: CMainThread::OnIpcMessageReceivedAtDepot
        File: .MainThread.cpp
        Line: 4291
        Received connect failure notification (host My_address , profile N/A)

        Date : 04/16/2015
        Time : 11:41:06
        Type : Information
        Source : acvpnui

        Description : VPN state: Disconnected
        Network state: Network Accessible
        Network control state: Network Access: Available
        Network type: Undefined

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnui

        Description : Function: ConnectMgr::run
        File: .ConnectMgr.cpp
        Line: 677
        Invoked Function: ConnectMgr::initiateConnect
        Return Code: -29622263 (0xFE3C0009)
        Description: CONNECTMGR_ERROR_UNEXPECTED

        Date : 04/16/2015
        Time : 11:41:06
        Type : Warning
        Source : acvpnui

        Description : Function: CVpnApiShim::ClosePopup
        File: .ApiShim.cpp
        Line: 1983
        No popup found of the given ID

        Date : 04/16/2015
        Time : 11:41:06
        Type : Error
        Source : acvpnagent

        Description : Function: CHostConfigMgr::determinePublicAddrCandidateFromDefRoute
        File: .HostConfigMgr.cpp
        Line: 1769
        Invoked Function: CHostConfigMgr::FindDefaultRouteInterface
        Return Code: -24117215 (0xFE900021)
        Description: ROUTETABLE_ERROR_GETBESTROUTE_FAILED

        Date : 04/16/2015
        Time : 11:41:06
        Type : Warning
        Source : acvpnagent

        Description : Function: CHostConfigMgr::updatePotentialPublicAddresses
        File: .HostConfigMgr.cpp
        Line: 1914
        Invoked Function: CHostConfigMgr::determinePublicAddrCandidateFromDefRoute
        Return Code: -24117215 (0xFE900021)
        Description: ROUTETABLE_ERROR_GETBESTROUTE_FAILED

        

        My company recently took over IT operations for another company. We have next to no documentation to go off of.

        Users use CiscoAnyconnect for VPN and we need to be able to manage this system for them.

        One user is getting «Login Failed» when trying to connect and I cannot find a way to get their password reset. I can confirm that their AD environment is not integrated with Cisco VPN.

        Any guidance will be appreciated. where to start especially. We have access to their servers and domain controllers.

        Исправление: AnyConnect не смог установить соединение с указанным безопасным шлюзом.

        Сообщение об ошибке « AnyConnect не смог установить соединение с указанным безопасным шлюзом » появляется, когда пользователи пытаются подключиться к VPN с помощью клиента AnyConnect. Эта проблема возникает из-за того, что VPN-клиент AnyConnect не может успешно выполнить процесс соединения с удаленным сервером, и на его пути есть некоторые блокировки. Сегодня мы рассмотрим указанное сообщение об ошибке, включая причины появления сообщения об ошибке и различные решения, которые вы можете реализовать, чтобы избавиться от ошибки.

        

        Что вызывает сообщение об ошибке «AnyConnect не смог установить соединение с указанным безопасным шлюзом»?

        Это может быть связано с множеством причин. Иногда это блокировка антивируса или брандмауэра, а иногда это может быть вызвано плохим подключением к Интернету. Следующие будут основными причинами; упомянуть вкратце —

        • Проблема с антивирусом или брандмауэром: антивирусное программное обеспечение может время от времени мешать процессу подключения AnyConnect Client VPN и не позволять ему подключаться к внешним сетям или серверам из соображений безопасности. Часто он блокирует множество входящих и исходящих соединений. Таким образом, вы не сможете подключиться к своей любимой VPN с помощью Anyconnect.
        • Неправильная конфигурация клиента: если вы неправильно настроили свой клиент Anyconnect и хранящиеся в нем конфигурации VPN неверны, то вы столкнетесь с проблемами при установлении успешных соединений.
        • Интернет-ограничения: иногда IP-адреса некоторых стран могут быть заблокированы вашим интернет-провайдером, и вы можете сознательно не пытаться подключиться к VPN той же страны, которая была заблокирована вашим интернет-провайдером. Тогда вы столкнетесь с проблемами.

        Чтобы обойти сообщение об ошибке, вы можете следовать приведенным ниже решениям, но обязательно перезагрузите компьютер и приложение, прежде чем переходить к другим исправлениям.

        Решение 1. Отключение антивируса

        Перво-наперво. В большинстве случаев проблема возникает из-за блокировки антивируса, что является распространенным сценарием. Следовательно, в таком случае вы должны попытаться отключить любой сторонний антивирус, который вы установили в своей системе, а затем попытаться подключиться к VPN с помощью AnyConnect. Надеюсь, это решит проблему.

        

        Решение 2. Остановите службу подключения к Интернету

        Время от времени служба ICS работает, что вызывает проблемы для клиента AnyConnect при подключении к VPN. Вам нужно будет отключить его, чтобы решить проблему. Вот как отключить службу:

        

        1. Нажмите Windows + R и введите services.msc.
        2. Когда откроется окно со службами, найдите службу общего доступа к подключению Интернета . Щелкните его правой кнопкой мыши и выберите « Остановить» .
        3. Затем выйдите из окна служб , закрыв его.

        Решение 3. Отключите общий доступ к подключению к Интернету (ICS)

        Было несколько случаев, когда, если в Windows был включен ICS, пользователи сталкивались с этой проблемой. Чтобы отключить ICS, следуйте приведенным ниже инструкциям:

        

        1. Откройте панель управления
        2. Перейдите в раздел «Сеть и общий доступ к Интернету» и нажмите « Изменить настройки адаптера» .
        3. После этого вам нужно будет щелкнуть правой кнопкой мыши по общему сетевому подключению , а затем выбрать « Свойства» .
        4. В окне свойств нажмите на Совместное использование
        5. Оказавшись там, вам нужно снять флажок с надписью « Разрешить другим пользователям сети подключаться через подключение к Интернету этого компьютера ».
        6. После этого нажмите ОК.

        Если ваша проблема была вызвана включением ICS, это должно было исправить ее.

        Решение 4. Выберите параметр Подключиться к текущей сети в AnyConnect VPN.

        Иногда клиентский VPN Any Connect колеблется между разными сетями, поэтому вам нужно выбрать вариант подключения только к текущей сети. Это может решить проблему для вас. Вот как это сделать:

        

        1. Откройте клиент AnyConnect и там, где вы видите написанную сеть , щелкните ее правой кнопкой мыши.
        2. Щелкните « Подключиться только к текущей сети ».

        Решение 5. Попробуйте другое подключение

        Иногда используемое вами интернет-соединение может иметь некоторые ограничения или может работать неправильно, что является причиной проблемы. В таком сценарии вам придется использовать альтернативное соединение, такое как Wi-Fi или мобильная точка доступа, чтобы узнать, можете ли вы подключиться к VPN.

        AnyConnect VPN Client Troubleshooting Guide — Common Problems

        The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

        Contents

        Introduction

        This document describes a troubleshooting scenario which applies to applications that do not work through the Cisco AnyConnect VPN Client.

        Prerequisites

        Requirements

        There are no specific requirements for this document.

        Components Used

        The information in this document is based on a Cisco Adaptive Security Appliance (ASA) that runs Version 8.x.

        The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

        Troubleshooting Process

        This typical troubleshooting scenario applies to applications that do not work through the Cisco AnyConnect VPN Client for end-users with Microsoft Windows-based computers. These sections address and provide solutions to the problems:

        Installation and Virtual Adapter Issues

        Complete these steps:

        Obtain the device log file:
        Windows XP / Windows 2000:

        Note: Hidden folders must be made visible in order to see these files.

        If you see errors in the setupapi log file, you can turn up verbosity to 0x2000FFFF.

        If this is an initial web deploy install, this log is located in the per-user temp directory.

        Windows XP / Windows 2000:

        If this is an automatic upgrade, this log is in the temp directory of the system:

        The filename is in this format: anyconnect-win-x.x.xxxx-k9-install-yyyyyyyyyyyyyy.log. Obtain the most recent file for the version of the client you want to install. The x.xxxx changes based on the version, such as 2.0.0343, and yyyyyyyyyyyyyy is the date and time of the install.

        From a Command Prompt/DOS box, type this:
        Windows XP / Windows 2000:

        Note: After you type into this prompt, wait. It can take between two to five minutes for the file to complete.

        Windows XP and Windows Vista:

        Refer to AnyConnect: Corrupt Driver Database Issue in order to debug the driver issue.

        Disconnection or Inability to Establish Initial Connection

        If you experience connection problems with the AnyConnect client, such as disconnections or the inability to establish an initial connection, obtain these files:

        The configuration file from the ASA in order to determine if anything in the configuration causes the connection failure:

        From the console of the ASA, type write net x.x.x.x:ASA-Config.txt where x.x.x.x is the IP address of a TFTP server on the network.

        From the console of the ASA, type show running-config . Let the configuration complete on the screen, then cut-and-paste to a text editor and save.

        In order to enable logging on the ASA for auth, WebVPN, Secure Sockets Layer (SSL), and SSL VPN Client (SVC) events, issue these CLI commands:
        Choose Start > Run.

        Note: Always save it as the .evt file format.

        If the user cannot connect with the AnyConnect VPN Client, the issue might be related to an established Remote Desktop Protocol (RDP) session or Fast User Switching enabled on the client PC. The user can see the AnyConnect profile settings mandate a single local user, but multiple local users are currently logged into your computer. A VPN connection will not be established error message error on the client PC. In order to resolve this issue, disconnect any established RDP sessions and disable Fast User Switching. This behavior is controlled by the Windows Logon Enforcement attribute in the client profile, however currently there is no setting that actually allows a user to establish a VPN connection while multiple users are logged on simultaneously on the same machine. Enhancement request CSCsx15061 was filed to address this feature.

        Note: Make sure that port 443 is not blocked so the AnyConnect client can connect to the ASA.

        When a user cannot connect the AnyConnect VPN Client to the ASA, the issue might be caused by an incompatibility between the AnyConnect client version and the ASA software image version. In this case, the user receives this error message: The installer was not able to start the Cisco VPN client, clientless access is not available .

        In order to resolve this issue, upgrade the AnyConnect client version to be compatible with the ASA software image.

        When you log in the first time to the AnyConnect, the login script does not run. If you disconnect and log in again, then the login script runs fine. This is the expected behavior.

        When you connect the AnyConnect VPN Client to the ASA, you might receive this error: User not authorized for AnyConnect Client access, contact your administrator .

        This error is seen when the AnyConnect image is missing from the ASA. Once the image is loaded to the ASA, AnyConnect can connect without any issues to the ASA.

        This error can be resolved by disabling Datagram Transport Layer Security (DTLS). Go to Configuration > Remote Access VPN > Network (Client) Access > AnyConnect Connection Profiles and uncheck the Enable DTLS check box. This disables DTLS.

        The dartbundle files show this error message when the user gets disconnected: TUNNELPROTOCOLDPDMGR_ERROR_NO_DPD_RESPONSE:The secure gateway failed to respond to Dead Peer Detection packets . This error means that the DTLS channel was torn due to Dead Peer Detection (DPD) failure. This error is resolved if you tweak the DPD keepalives and issue these commands:

        The svc keepalive and svc dpd-interval commands are replaced by the anyconnect keepalive and anyconnect dpd-interval commands respectively in ASA Version 8.4(1) and later as shown here:

        Problems with Passing Traffic

        When problems are detected with passing traffic to the private network with an AnyConnect session through the ASA, complete these data-gathering steps:

        Obtain the output of the show vpn-sessiondb detail svc filter name ASA command from the console. If the output shows Filter Name: XXXXX , then gather the output for show access-list XXXXX. Verify that the access-list XXXXX does not block the intended traffic flow.

        For example, if the VPN Client needs to access a resource which is not in the routing table of the VPN Gateway, the packet is routed through the standard default gateway. The VPN gateway does not need the complete internal routing table in order to resolve this. The tunneled keyword can be used in this instance.

        AnyConnect Crash Issues

        Complete these data-gathering steps:

        Ensure that the Microsoft Utility Dr Watson is enabled. In order to do this, choose Start > Run, and run Drwtsn32.exe. Configure this and click OK:

        When the crash occurs, gather the .log and .dmp files from C:Documents and SettingsAll UsersApplication DataMicrosoftDr Watson. If these files appear to be in use, then use ntbackup.exe.

        Note: Always save it as the .evt file format.

        Fragmentation / Passing Traffic Issues

        Some applications, such as Microsoft Outlook, do not work. However, the tunnel is able to pass other traffic such as small pings.

        This can provide clues as to a fragmentation issue in the network. Consumer routers are particularly poor at packet fragmentation and reassembly.

        Try a scaling set of pings in order to determine if it fails at a certain size. For example, ping -l 500, ping -l 1000, ping -l 1500, ping -l 2000.

        It is recommended that you configure a special group for users that experience fragmentation, and set the SVC Maximum Transition Unit (MTU) for this group to 1200. This allows you to remediate users who experience this issue, but not impact the broader user base.

        Problem

        TCP connections hang once connected with AnyConnect.

        Solution

        In order to verify if your user has a fragmentation issue, adjust the MTU for AnyConnect clients on the ASA.

        Uninstall Automatically

        Problem

        The AnyConnect VPN Client uninstalls itself once the connection terminates. The client logs show that keep installed is set to disabled.

        Solution

        AnyConnect uninstalls itself despite that the keep installed option is selected on the Adaptive Security Device Manager (ASDM). In order to resolve this issue, configure the svc keep-installer installed command under group-policy.

        Issue Populating the Cluster FQDN

        Problem: AnyConnect client is pre-populated with the hostname instead of the cluster Fully Qualified Domain Name (FQDN).

        When you have a load-balancing cluster set up for SSL VPN and the client attempts to connect to the cluster, the request is redirected to the node ASA and the client logs in successfully. After some time, when the client tries to connect to the cluster again, the cluster FQDN is not seen in the Connect to entries. Instead, the node ASA entry to which the client has been redirected is seen.

        Solution

        This occurs because the AnyConnect client retains the host name to which it last connected. This behavior is observed and a bug has been filed. For complete details about the bug, refer to Cisco bug ID CSCsz39019. The suggested workaround is to upgrade the Cisco AnyConnect to Version 2.5.

        Backup Server List Configuration

        A backup server list is configured in case the main server selected by the user is not reachable. This is defined in the Backup Server pane in the AnyConnect profile. Complete these steps:

        Download the AnyConnect Profile Editor (registered customers only) . The file name is AnyConnectProfileEditor2_4_1.jar.
        Go to the server list tab.
        In ASDM, choose Configuration >Remote Access VPN >Network (Client) Access >AnyConnect Connection Profiles.

        AnyConnect: Corrupt Driver Database Issue

        This entry in the SetupAPI.log file suggests that the catalog system is corrupt:

        W239 driver signing class list «C:WINDOWSINFcertclas.inf» was missing or invalid. Error 0xfffffde5: Unknown Error. , assuming all device classes are subject to driver signing policy.

        You can also receive this error message: Error(3/17): Unable to start VA, setup shared queue, or VA gave up shared queue .

        You can receive this log on the client: «The VPN client driver has encountered an error» .

        Repair

        This issue is due to Cisco bug ID CSCsm54689. In order to resolve this issue, make sure that Routing and Remote Access Service is disabled before you start AnyConnect. If this does not resolve the issue, complete these steps:

        Open a command prompt as an Administrator on the PC (elevated prompt on Vista).

        Failed Repair

        If the repair fails, complete these steps:

        Open a command prompt as an Administrator on the PC (elevated prompt on Vista).

        Analyze the Database

        You can analyze the database at any time in order to determine if it is valid.

        Open a command prompt as an Admimistrator on the PC.

        Error Messages

        Error: Unable to Update the Session Management Database

        While the SSL VPN is connected through a web browser, the Unable to Update the Session Management Database. error message appears, and the ASA logs show %ASA-3-211001: Memory allocation Error. The adaptive security appliance failed to allocate RAM system memory .

        Solution 1

        This issue is due to Cisco bug ID CSCsm51093. In order to resolve this issue, reload the ASA or upgrade the ASA software to the interim release mentioned in the bug. Refer to Cisco bug ID CSCsm51093 for more information.

        Solution 2

        This issue can also be resolved if you disable threat-detection on ASA if threat-detection is used.

        Error: «Module c:Program FilesCiscoCisco AnyConnect VPN Clientvpnapi.dll failed to register»

        When you use the AnyConnect client on laptops or PCs, an error occurs during the install:

        When this error is encountered, the installer cannot move forward and the client is removed.

        Solution

        These are the possible workarounds to resolve this error:

        The latest AnyConnect client is no longer officially supported with Microsoft Windows 2000. It is a registry problem with the 2000 computer.
        • vpnapi.dll
        • vpncommon.dll
        • vpncommoncrypt.dll

        The log message related to this error on the AnyConnect client looks similar to this:

        Error: «An error was received from the secure gateway in response to the VPN negotiation request. Please contact your network administrator»

        When clients try to connect to the VPN with the Cisco AnyConnect VPN Client, this error is received.

        This message was received from the secure gateway:

        «Illegal address class» or «Host or network is 0» or «Other error»

        Solution

        The issue occurs because of the ASA local IP pool depletion. As the VPN pool resource is exhausted, the IP pool range must be enlarged.

        Cisco bug ID is CSCsl82188 is filed for this issue. This error usually occurs when the local pool for address assignment is exhausted, or if a 32-bit subnet mask is used for the address pool. The workaround is to expand the address pool and use a 24-bit subnet mask for the pool.

        Error: Session could not be established. Session limit of 2 reached.

        When you try to connect more than two clients with the AnyConnect VPN Client, you receive the Login Failed error message on the Client and a warning message in the ASA logs that states Session could not be established. Session limit of 2 reached . I have the AnyConnect essential license on the ASA, which runs Version 8.0.4.

        Solution 1

        This error occurs because the AnyConnect essential license is not supported by ASA version 8.0.4. You need to upgrade the ASA to version 8.2.2. This resolves the error.

        Note: Regardless of the license used, if the session limit is reached, the user will receive the login failed error message.

        Solution 2

        This error can also occur if the vpn-sessiondb max-anyconnect-premium-or-essentials-limit session-limit command is used to set the limit of VPN sessions permitted to be established. If the session-limit is set as two, then the user cannot establish more than two sessions even though the license installed supports more sessions. Set the session-limit to the number of VPN sessions required in order to avoid this error message.

        Error: Anyconnect not enabled on VPN server while trying to connect anyconnect to ASA

        You receive the Anyconnect not enabled on VPN server error message when you try to connect AnyConnect to the ASA.

        Solution

        This error is resolved if you enable AnyConnect on the outside interface of the ASA with ASDM. For more information on how to enable AnyConnect on the outside interface, refer to Configure Clientless SSL VPN (WebVPN) on the ASA.

        Error:- %ASA-6-722036: Group client-group User xxxx IP x.x.x.x Transmitting large packet 1220 (threshold 1206)

        The %ASA-6-722036: Group < client-group >User < xxxx >IP < x.x.x.x>Transmitting large packet 1220 (threshold 1206) error message appears in the logs of the ASA. What does this log mean and how is this resolved?

        Solution

        This log message states that a large packet was sent to the client. The source of the packet is not aware of the MTU of the client. This can also be due to compression of non-compressible data. The workaround is to turn off the SVC compression with the svc compression none command. This resolves the issue.

        Error: The secure gateway has rejected the agent’s vpn connect or reconnect request.

        When you connect to the AnyConnect Client, this error is received: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires re-authentication and must be started manually. Please contact your network administrator if this problem persists. The following message was received from the secure gateway: no assigned address» .

        This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the connection attempt. A new connection attempt to the same or another secure gateway is needed, which requires re-authentication. The following message was received from the secure gateway:Host or network is 0» .

        This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» .

        Solution

        The router was missing pool configuration after reload. You need to add the concerned configuration back to the router.

        The «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» error occurs when the AnyConnect mobility license is missing. Once the license is installed, the issue is resolved.

        Error: «Unable to update the session management database»

        When you try to authenticate in WebPortal, this error message is received: «Unable to update the session management database» .

        Solution

        This problem is related to memory allocation on the ASA. This issue is mostly encountered when the ASA Version is 8.2.1. Originally, this requires a 512MB RAM for its complete functionality.

        As a permanent workaround, upgrade the memory to 512MB.

        As a temporary workaround, try to free the memory with these steps:

        Disable the threat-detection.

        Error: «The VPN client driver has encountered an error»

        This is an error message obtained on the client machine when you try to connect to AnyConnect.

        Solution

        In order to resolve this error, complete this procedure in order to manually set the AnyConnect VPN agent to Interactive:

        Right-click My Computer > Manage > Services and Applications > Services > and select the Cisco AnyConnect VPN Agent.

        This sets the registry Type value DWORD to 110 (default is 010) for the HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesvpnagent.

        Note: If this is to be used, then the preference would be to use the .MST transform in this instance. This is because if you set this manually with these methods, it requires that this be set after every install/upgrade process. This is why there is a need to identify the application that causes this problem.

        Error: «Unable to process response from xxx.xxx.xxx.xxx»

        AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Unable to process response from xxx.xxx.xxx.xxx» .

        Solution

        In order to resolve this error, try these workarounds:

        Remove WebVPN from the ASA and reenable it. <

        For more information on how to enable WebVPN and change the port for WebVPN, refer to this Solution.

        Error: «Login Denied , unauthorized connection mechanism , contact your administrator»

        AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Login Denied , unauthorized connection mechanism , contact your administrator» .

        Solution

        This error message occurs mostly because of configuration issues that are improper or an incomplete configuration. Check the configuration and make sure it is as required to resolve the issue.

        Error: «Anyconnect package unavailable or corrupted. Contact your system administrator»

        This error occurs when you try to launch the AnyConnect software from a Macintosh client in order to connect to an ASA.

        Solution

        In order to resolve this, complete these steps:

        Upload the Macintosh AnyConnect package to the flash of the ASA.

        The svc image command is replaced by the anyconnect image command in ASA Version 8.4(1) and later as shown here:

        Error: «The AnyConnect package on the secure gateway could not be located»

        This error is caused on the user’s Linux machine when it tries to connect to the ASA by launching AnyConnect. Here is the complete error:

        Solution

        In order to resolve this error message, verify whether the Operating System (OS) that is used on the client machine is supported by the AnyConnect client.

        If the OS is supported, then verify if the AnyConnect package is specified in the WebVPN configuration or not. See the Anyconnect package unavailable or corrupted section of this document for more information.

        Error: «Secure VPN via remote desktop is not supported»

        Users are unable to perform a remote desktop access. The Secure VPN via remote desktop is not supported error message appears.

        Solution

        This issue is due to these Cisco bug IDs: CSCsu22088 and CSCso42825. If you upgrade the AnyConnect VPN Client, it can resolve the issue. Refer to these bugs for more information.

        Error: «The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established»

        When you attempt to VPN to the ASA 5505, the The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established error message appears.

        Solution

        In order to resolve this error, you must disable the Federal Information Processing Standards (FIPS) in the AnyConnect Local Policy file. This file can usually be found at C:ProgramDataCiscoCisco AnyConnect VPN ClientAnyConnectLocalPolicy.xml . If this file is not found in this path, then locate the file at a different directory with a path such as C:Documents and SettingsAll UsersApplication DataCisco AnyConnectVPNClientAnyConnectLocalPolicy.xml . Once you locate the xml file, make changes to this file as shown here:

        Change the phrase:

        Then, restart the computer. Users must have administrative permissions in order to modify this file.

        Error: «Certificate Validation Failure»

        Users are unable to launch AnyConnect and receive the Certificate Validation Failure error.

        Solution

        Certificate authentication works differently with AnyConnect compared to the IPSec client. In order for certificate authentication to work, you must import the client certificate to your browser and change the connection profile in order to use certificate authentication. You also need to enable this command on your ASA in order to allow SSL client-certificates to be used on the outside interface:

        ssl certificate-authentication interface outside port 443

        Error: «VPN Agent Service has encountered a problem and needs to close. We are sorry for the inconvenience»

        When AnyConnect Version 2.4.0202 is installed on a Windows XP PC, it stops at updating localization files and an error message shows that the vpnagent.exe fails.

        Solution

        This behavior is logged in Cisco bug ID CSCsq49102. The suggested workaround is to disable the Citrix client.

        Error: «This installation package could not be opened. Verify that the package exists»

        When AnyConnect is downloaded, this error message is received:

        «Contact your system administrator. The installer failed with the following error: This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.»

        Solution

        Complete these steps in order to fix this issue:

        Remove any anti-virus software.

        Error: «Error applying transforms. Verify that the specified transform paths are valid.»

        This error message is recieved during the auto-download of AnyConnect from the ASA:

        This is the error message received when connecting with AnyConnect for MacOS:

        Solution

        Complete one of these workarounds in order to resolve this issue:

        The root cause of this error might be due to a corrupted MST translation file (for example, imported). Perform these steps to fix this:
        Remove the MST translation table.

        If neither of these workarounds resolve the issue, contact Cisco Technical Support.

        Error: «The VPN client driver has encountered an error»

        This error is received:

        Solution

        This issue can be resolved when you uninstall the AnyConnect Client, and then remove the anti-virus software. After this, reinstall the AnyConnect Client. If this resolution does not work, then reformat the PC in order to fix this issue.

        Error: «A VPN reconnect resulted in different configuration setting. The VPN network setting is being re-initialized. Applications utilizing the private network may need to be restored.»

        This error is received when you try to launch AnyConnect:

        Solution

        In order to resolve this error, use this:

        The svc mtu command is replaced by the anyconnect mtu command in ASA Version 8.4(1) and later as shown here:

        AnyConnect Error While Logging In

        Problem

        The AnyConnect receives this error when it connects to the Client:

        Solution

        The issue can be resolved if you make these changes to the AnyConnect profile:

        Add this line to the AnyConnect profile:

        IE Proxy Setting is Not Restored after AnyConnect Disconnect on Windows 7

        Problem

        In Windows 7, if the IE proxy setting is configured for Automatically detect settings and AnyConnect pushes down a new proxy setting, the IE proxy setting is not restored back to Automatically detect settings after the user ends the AnyConnect session. This causes LAN issues for users who need their proxy setting configured for Automatically detect settings.

        Solution

        This behavior is logged in Cisco bug ID CSCtj51376. The suggested workaround is to upgrade to AnyConnect 3.0.

        Error: AnyConnect Essentials can not be enabled until all these sessions are closed.

        This error message is received on Cisco ASDM when you attempt to enable the AnyConnect Essentials license:

        Solution

        This is the normal behavior of the ASA. AnyConnect Essentials is a separately licensed SSL VPN client. It is entirely configured on the ASA and provides the full AnyConnect capability, with these exceptions:

        No Cisco Secure Desktop (CSD) (including HostScan/Vault/Cache Cleaner)

        This license cannot be used at the same time as the shared SSL VPN premium license. When you need to use one license, you need to disable the other.

        Error: Connection tab on Internet option of Internet Explorer hides after getting connected to the AnyConnect client.

        The connection tab on the Internet option of Internet Explorer hides after you are connected to the AnyConnect client.

        Solution

        This is due to the msie-proxy lockdown feature. If you enable this feature, it hides the Connections tab in Microsoft Internet Explorer for the duration of an AnyConnect VPN session. If you disable the feature, it leaves the display of the Connections tab unchanged.

        Error: Few users getting Login Failed Error message when others are able to connect successfully through AnyConnect VPN

        A few users receive the Login Failed Error message when others can connect successfully through the AnyConnect VPN.

        Solution

        This issue can be resolved if you make sure the do not require pre-authentication checkbox is checked for the users.

        Error: The certificate you are viewing does not match with the name of the site you are trying to view.

        During the AnyConnect profile update, an error is shown that says the certificate is invalid. This occurs with Windows only and at the profile update phase. The error message is shown here:

        Solution

        This can be resolved if you modify the server list of the AnyConnect profile in order to use the FQDN of the certificate.

        This is a sample of the XML profile:

        Note: If there is an existing entry for the Public IP address of the server such as , then remove it and retain only the FQDN of the server (for example, but not ).

        Cannot Launch AnyConnect From the CSD Vault From a Windows 7 Machine

        When the AnyConnect is launched from the CSD vault, it does not work. This is attempted on Windows 7 machines.

        Solution

        Currently, this is not possible because it is not supported.

        AnyConnect Profile Does Not Get Replicated to the Standby After Failover

        The AnyConnect 3.0 VPN client with ASA Version 8.4.1 software works fine. However, after failover, there is no replication for the AnyConnect profile related configuration.

        Solution

        This problem has been observed and logged under Cisco bug ID CSCtn71662. The temporary workaround is to manually copy the files to the standby unit.

        AnyConnect Client Crashes if Internet Explorer Goes Offline

        When this occurs, the AnyConnect event log contains entries similar to these:

        Solution

        This behavior is observed and logged under Cisco bug ID CSCtx28970. In order to resolve this, quit the AnyConnect application and relaunch. The connection entries reappear after relaunch.

        Error Message: TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER

        The AnyConnect client fails to connect and the Unable to establish a connection error message is received. In the AnyConnect event log, the TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER error is found.

        Solution

        This occurs when the headend is configured for split-tunneling with a very large split-tunnel list (approximately 180-200 entries) and one or more other client attributes are configured in the group-policy, such as dns-server.

        In order to resolve this issue, complete these steps:

        Reduce the number of entries in the split-tunnel list.

        For more information, refer to Cisco bug ID CSCtc41770.

        Error Message: «Connection attempt has failed due to invalid host entry»

        The Connection attempt has failed due to invalid host entry error message is received while AnyConnect is authenticated with the use of a certificate.

        Solution

        In order to resolve this issue, try either of these possible solutions:

        • Upgrade the AnyConnect to Version 3.0.
        • Disable Cisco Secure Desktop on your computer.

        For more information, refer to Cisco bug ID CSCti73316.

        Error: «Ensure your server certificates can pass strict mode if you configure always-on VPN»

        When you enable the Always-On feature on AnyConnect, the Ensure your server certificates can pass strict mode if you configure always-on VPN error message is received.

        Solution

        This error message implies that if you want to use the Always-On feature, you need a valid sever certificate configured on the headend. Without a valid server certificate, this feature does not work. Strict Cert Mode is an option that you set in the AnyConnect local policy file in order to ensure the connections use a valid certificate. If you enable this option in the policy file and connect with a bogus certificate, the connection fails.

        Error: «An internal error occurred in the Microsoft Windows HTTP Services»

        This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

        Also, refer to the event viewer logs on the Windows machine.

        Solution

        This could be caused due to a corrupted Winsock connection. Reset the connection from the command promt with this command and restart your windows machine:

        netsh winsock reset

        Error: «The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.»

        This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

        Solution

        Windows 8.1 does not support RC4 according to the following KB update:

        Either configure DES/3DES ciphers for SSL VPN on the ASA using the command «ssl encryption 3des-sha1 aes128-sha1 aes256-sha1 des-sha1» OR edit the Windows Registry file on the client machine as mentioned below:

        If you are facing Cisco AnyConnect Connection attempt failed error in your Windows 10 computer when you try to use or connect to Cisco AnyConnect, then you are in right place for the solution. Here, you will be guided with easy steps/methods to resolve the issue. Let’s starts the discussion.

        ‘Cisco AnyConnect’: Cisco offers Cisco AnyConnect Secure Mobility to extend network perimeter to remote endpoints, enabling the seamless integration of web filtering services offered by Web Security appliance. Cisco AnyConnect Secure Mobility provides an innovative new way to protect mobile users on computer-based or smart-phone platforms, providing a more seamless, always protected experience for end users and comprehensive policy enforcement for IT administrators.

        However, several Windows 10 users reported they faced Cisco AnyConnect Connection attempt failed error or ‘Connection attempt failed’ error when they tried to use Cisco AnyConnect or running VPN (Virtual Private Network) on Windows 10 computer. This issue indicates you are unable to run or use Cisco AnyConnect VPN in your Windows computer for some reasons. There could be several reasons behind the issue including required admisntrator permission is not given to Cisco AnyConnect or Cisco AnyConnect is no running in compatibility mode, enabled Hyper-V and some other issues in your computer.

        One possible way to fix the issue is to provide administrator permission to Cisco AnyConnect Connection and allow running in compatibility mode also. Another possible way to fix the issue is to disable Microsoft Hyper-V feature in your Windows computer, and check if it works for you. It is possible to fix the issue with our instructions. Let’s go for the solution.

        How to fix Cisco AnyConnect Connection attempt failed error in Windows 10?

        Method 1: Fix Cisco AnyConnect Connection attempt failed error with ‘PC Repair Tool’

        ‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, DLL errors, EXE errors, problems with programs/applications, malware or viruses issues, system files or registry issues, and other system issues with just few clicks.

        Method 2: Run Cisco AnyConnect in Compatibility Mode

        

        One possible way to fix the issue is to set Cisco AnyConnect program to run in compatibility mode in your computer.

        Step 1: Open ‘File Explorer’ and navigate to ‘C:Program Files (x86)CiscoCisco AnyConnect Secure Mobility Client’ path

        Step 2: Find and right-click on ‘vpnui.exe’, and select ‘Properties’. In ‘Properties’ window, click ‘Compatibility’ tab, tick ‘Run this program in compatibility mode for’ checkbox and select ‘Windows 8’ or prior from dropdown, tick ‘Run this program as an administrator’ checkbox and then hit ‘Apply’ and ‘Ok’ button to save the changes.

        Step 3: Once done, restart your computer and check if you can run and use Cisco AnyConnect in your Windows 10 computer without any issue.

        Method 3: Disable Microsoft Hyper-V feature in Windows 10

        

        Another possible way to fix the issue is to disable Microsoft Hyper-V feature in your Windows 10 computer.

        Step 1: Open ‘Control Panel’ in Windows PC via Windows Search Box and go to ‘Uninstall a Program > Programs & Features > Turn Windows Features ON or OFF’

        Step 2: In ‘Windows Features’ window, find and untick the checkboxes relating to ‘Hyper-V’ and then hit ‘OK’ button to save the changes. Once done, restart your computer and check if the error is resolved.

        Method 4: Stop ‘Internet Connection Sharing’ service

        

        This issue can be resolved by stopping ‘Internet Connection Sharing’ service in your computer.

        Step 1: Open ‘Services’ app in Windows PC via Windows Search Box

        Step 2: Find and double-click on ‘Internet Connection Sharing’ service to open its ‘Properties’

        Step 3: In ‘Properties’ window, select ‘Manual’ from ‘Startup Type’ dropdown and hit ‘Stop’ button under ‘Service Status’ section

        Step 4: Finally, click ‘Apply’ and ‘Ok’ button to save the changes. Once done, restart your computer and check if the error is resolved.

        Method 5: Install pending Windows update

        Updating Windows OS to latest update version can resolve the issue.

        Step 1: Open ‘Settings’ App in Windows PC and go to ‘Update & Security > Windows Update’ and click ‘Check for updates’ button

        Step 2: Download and install all available updates or pending updates and once updated, restart your computer and check if the error is resolved.

        Method 6: Disable Internet Explorer’s ability to Work Offiline via Registry Editor

        Step 1: Open ‘Registry Editor’ in Windows PC via Windows Search Box and navigate to following path

        Step 2: Now, double-click on ‘GlobalUserOffline’ DWORD key in right pane to edit, set ‘Base’ to ‘Hexadecimal’, set value data to ‘0’, and then hit ‘Ok’ to save the changes. Once done, restart your computer and check if the error is resolved.

        Conclusion

        I am sure this post helped you on How to fix Cisco AnyConnect Connection attempt failed error in Windows 10 with several easy steps/methods. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.

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