About VPN Error 800
Sunday May 28, 2006
| FAQ | One of the most common errors encountered when working with a VPN is error 800 - "Unable to establish the VPN connection." Unfortunately this error code doesn't tell you anything of why the connection is actually failing. If you encounter it, check the following:
- Are you using the correct VPN server name? The server administrator provides this name.
- Is the Internet / network connection to the server functioning properly? You should ping the server is not sure.
- Is your network firewall blocking VPN connections? Port 1723 must be opened and Protocol 47 must be enabled in the firewall configuration settings
- Does the server have too many clients already connected (VPN server connection limit exceeded)? The server administrator can check this, but it is not a common problem.
Comments
I just discovered that this error can also be caused by a corrupt LSP stack.
Also a possibility is to disable Norton Antivirus Internet protection (it probably contains a firewall)
Regarding Norton, the Norton firewall causes endless problems sometimes. I would recommend anything BUT Norton. Heck, even the built in XP Firewall is better than Norton.