721 VPN Error on wireless connection only

[Guest]

I have a customer with 2 Dell laptops. 1 is brand new and the other is about
a year old. They both have the same problem. They can connect to the company
VPN, which is on a 2003 Small Biz server, when plugged in to a router at
their homes or other location. But when they have a wireless Internet
connection, whether it be at home or in a public wi-fi setting, they keep
getting the 721 error. I have checked the settings and cannot figure out what
would be different about the wireless connection versus the wired. Any
suggestions are appreciated.

Thanks,

Mike

 

[Robert L [MVP - Networking]]

Can you telnet port 1723 when using wireless? Or this search result may help.

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. ...
HTTP://www.chicagotech.net/VPN/vpncase800.htm - Similar pages

error 721 and error 800
I double checked the check list in server management and enabled VPN to the ... with an domain administrator account I still get those error:721,and 800 . ...
http://www.chicagotech.net/Q&A/vpn25.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
I have a customer with 2 Dell laptops. 1 is brand new and the other is about
a year old. They both have the same problem. They can connect to the company
VPN, which is on a 2003 Small Biz server, when plugged in to a router at
their homes or other location. But when they have a wireless Internet
connection, whether it be at home or in a public wi-fi setting, they keep
getting the 721 error. I have checked the settings and cannot figure out what
would be different about the wireless connection versus the wired. Any
suggestions are appreciated.

Thanks,

Mike