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VPN Client Error Messages - Reason from 401 to 410

Reason 401: An unrecognized error occurred while establishing the VPN connection.

Troubleshooting: VPN connection was not established because of an unrecognized reason. Please check client logs for details.

Reason 402: The Connection Manager was unable to read the connection entry, or the connection
entry has missing or incorrect information.

Troubleshooting: Either the connection profile is missing or does not have all the information. To fix this problem, you can either select
another connection profile, or fix the current connection entry. Connection profiles are located in <client installation directory>\profiles. On most
machines, this is C:\Program Files\Cisco Systems\VPN Client\profiles. To fix this problem, replace the connection profile file from the profiles directory. This file can be copied from a machine that has the correct entry of this file.

Reason 403: Unable to contact the security gateway.

Troubleshooting: This can happen because of multiple reasons. One of the reasons that users can get this message is because IKE negotiations failed. Check the client logs for details. Also check this Cisco VPN Client Errors.

Reason 404: The remote peer terminated the connection during negotiation of security policies.

Troubleshooting: Check the remote peer (head−end) logs to determine the cause for this failure. connection during negotiation of security policies.

Reason 405: The remote peer terminated connection during user authentication.

Troubleshooting: This reason is not currently used.

Reason 406: Unable to establish a secure communication channel.

Troubleshooting: This reason is not currently used.

Reason 407: User authentication was cancelled by the user.

Troubleshooting: A user hit the cancel button (instead of OK) in the VPN Client user authentication dialog.

Reason 408: A VPN connection is already in the process of being established.

Troubleshooting: A connection is already in process.

Reason 409: A VPN connection already exists.

Troubleshooting: A VPN connection already exists.

Reason 410: The Connection Manager was unable to forward the user authentication request.

Troubleshooting: This is not currently used.