I have a LinkSys Firewall/Router and have a Cisco VPN Client installed on my PC. I am trying to remotely support a remote PC but get a "Failed to connect to server". On another PC I have, Shiva VPN Client is installed. On that second PC, with the same Firewall/Router, I am able to support a remote PC at my office (another site backed with a Shiva Gateway). Based on this "functionality", I expect my LinkSys Firewall/Router properly configured because Shiva VPN Client allow TightVNC to work. However, I get no functionality when trying to use VNC at a site backed with a Cisco VPN Server. Any ideas?