Cisco VPN Client displays error message
"Error 51: IPC socket allocation failed with error %xxxx." when
attempting a connection.
"Error 51: Unable to communicate with the VPN subsystem. Please make sure that you have at least one network interface that is currently active and has an IP address and start this application again."
The Cisco Systems VPN demon is not started:
* If this icon is not visible, select Classic View from the left hand pane.