I am unable to initialize the Cisco VPN client software on a Windows XP laptop. When I click on the shortcut to intialize the program, it returns an error which reads:
"Error 51: Unable to communicate with the VPN subsystem
Please make sure that at least one network interface is active
and has an IP address and start this application again."
I have unintalled the client software and then re-installed, I have installed a newer version of the client software, and then uninstalled and re-installed the original version of the Cisco client software, and nothing has corrected this issue.
At one point in time, the client software ran perfectly on this laptop. Without any knowledge of any changes to the system, it just started this error message a week ago and I cannot get around it.
Please advise on this - it is a critical issue dealing with a local law enforcement agency.