[Syed Kazim]

Hello everyone.

I'm trying to set up a VPN connection with my Windows 7 machine at home any my Windows XP laptop. The Windows 7 is the server, and my XP is the client. The machine at home is behind a DIR-600 router. I've setup the normal VPN connections at both the machines, and have also forwarded port 1793 on the Windows 7 (following the usual steps: static ip etc). I also exempted the said port from the windows firewall.

However, when I try to connect, at times I get an error 800 and at times an error 721. Anyone know what could be the problem?

 

[Wand3r3r]

You followed this guide?
How to Set up an incoming VPN on Windows 7

Here is what MS has to say about the errors
Troubleshooting remote access VPNs: Virtual Private Network (VPN)

Your router supports vpn passthrough. Make sure that is enabled.