VPN - client connecting via dialup, not from broadband connection

[Guest]

Hello,

I'm a using Win 2000 Server, which is my PDC as well as my VPN RAS server. I have VPN setup on this server and I see inconsistent behavior when accessing the VPN through a dial up connection via an ISP (it works correctly) and accessing the VPN through a broadband connection (it doesn’t work). The broadband user gets as far as verifying username and password box, and then they receive a message stating that the username and password could not be validated.

I have tested it on my laptop (Dell M60) and I’m able to duplicate the problems. Accessing the VPN through a dialup connects successfully to the VPN. However the VPN connection through the broadband connection doesn’t connect successfully.

Any thoughts?

Thanks,
David

 

[Robert L [MS-MVP]]

what's the error code? also make sure you have correct ports open for VPN
access.

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[Guest]

Robert,

Thanks for the reply. I found the problem. The encryption settings were not consistent between client computers.

Thanks again,
David

 

[Guest]

I seem to have spoken too soon. When connecting from the broadband connection
at home, I receive an error 621 and sometimes an error 721, however I was
able to get in one time with the exact same settings in the client.

The client routers we are using are Linksys wireless G and are set to allow
PPTP pass through.

The piece that confuses me is that if I use dial up then connect the VPN it
works every time.

Any ideas?

Thanks,
David