For quite some time now, we have been experiencing an issue with the Cisco VPN client that will make the client completely unusable. I have noticed that when a specific feature of Symantec Endpoint Protection is enabled, it will (about 25% of the time) cause the following errors to appear when attempting to connect anywhere with the Cisco VPN client. Once this error happens once, the VPN client then becomes useless.
Reason 414: Failed to establish a TCP connection
Reason 440: Driver Failure
Reason 442: Failed to enable virtual adapter
It seems that fixing one error will cause the other error to come up...
I have tried reinstalling the client with the same version and older versions and the issue still comes up.
All users in the company are using Windows 7 64-bit with SP1 installed.
The oddest thing about this is that all employees in the company have the same antivirus with the same features enabled, however, it only happens to a small percentage of employees.
Please let me know if you have any suggestions and thanks in advance!