vpn hangs on username/password verification.

[Guest]

When connected to my network at work, i try to connect to a VPN and get the
721 error. I can disconnect from the network and attach to a wireless
network and connect to the VPN with no problem. I have tried to connect to
two different VPN's (both are MS SBS2K3) and have had the same result. I
looked at the router at work and there does not seem to be anything blocked.

If someone knows what might be happening or point me in the right direction
I would greatly appreciate it.

Thanks,

 

[Robert L [MVP - Networking]]

You may want to upgrade the router firmware. These cases may help,

error 721 and error 800 Q: Error 721 and error 800. I have SBS 2003 Standard Edition. ... When attempting with an domain administrator account I still get those error:721,and 800 . ...
www.chicagotech.net/Q&A/vpn25.htm


case Studies - VPN error 721 and 800 Case 1: When a user attempts to access the Windows VPN server that is behind a Linksys WRT54G, he receives VPN Error 800 or 721. ...
www.chicagotech.net/VPN/vpncase800.htm


cannot establish VPN with error 721 and 800 Whenever he tries to establish the VPN, he receives Error 721 or 800. Troubleshooting: 1. Telnet port 1723 and get respond. ...
www.chicagotech.net/cisco/vpngre1.htm



Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
When connected to my network at work, i try to connect to a VPN and get the
721 error. I can disconnect from the network and attach to a wireless
network and connect to the VPN with no problem. I have tried to connect to
two different VPN's (both are MS SBS2K3) and have had the same result. I
looked at the router at work and there does not seem to be anything blocked.

If someone knows what might be happening or point me in the right direction
I would greatly appreciate it.

Thanks,