I have recently configured our company Windows NT4.0 Servers to accept VPN connections. I have successfully setup two offsite Windows XP Pro computers to connect to the VPN without any problems. Last week I configured another computer to connect to the company VPN, the computer I configured is running Windows XP Pro, it has a 1Mbps Cable modem connected to the Internet 24/7, but when we try connecting to our office VPN it gives us an Error 800. I had a friend check the connect who is on the same ISP and it worked fine for him. I checked our firewall connection at our office no problems there either.

Any ideas??