Question : Error 800: unable to establish vpn connection

Hi experts,

I have received the above error, does anyone know how I can solve it?


thanks


Chi

Answer : Error 800: unable to establish vpn connection

An 800 error is a very basic "no connection" error. You can get that when trying to connect to cyberspace. We really need more information as to your configuration to try to help troubleshoot. However please review the following to see if you have configured correctly. I am assuming you are using the windows built-in VPN client and server.

The basic server and client configurations can be found at the following sites with good detail:
Server 2003 configuration:
http://www.onecomputerguy.com/networking/w3k_vpn_server.htm
Windows XP VPN server:
http://www.onecomputerguy.com/networking/xp_vpn_server.htm
Windows XP client configuration:
http://www.onecomputerguy.com/networking/xp_vpn.htm
You will also have to configure the router to forward the VPN traffic to the server. This is done by enabling on your router VPN or PPTP pass-through, and also forwarding port 1723 traffic to the server's IP. For details as to how to configure the port forwarding, click on the link for your router (assuming it is present) on the following page:
http://www.portforward.com/english/applications/port_forwarding/PPTP/PPTPindex.htm
The only other thing to remember is the subnet you use at the remote office needs to be different than the server end. For example if you are using 192.168.1.x at the office , the remote should be something like 192.168.2.x

Once this is configured you can then use services similar to how you would on the local network. You will not be able to browse the network unless you have a WINS server installed. Also depending on your network configuration you may have problems connecting to devices by name. Using the IP address is less problematic such as \\192.168.1.111\SharenName.