Can’t login to VPN on WinNT4, SP6

Running VPN on NT4,Client can’t log in..
I’m setting up a VPN on NT4.0 SP6, the install went well and I was able to get a test machine up and running last month. I’ve tried to set it up again using a different ISP, but now I’m having an error during the ‘client’ log in.

It seems to hang on ‘Registering your computer on the network’, then I get an error: ‘TCP/IP reported error 718:Timed out watinf for a valid response from the remote PPP peer’.
The client machine shows up in Server Manager.

I’ve granted Dial in permission to all the users via Remote Access Admin.

Any ideas where to look.

Thanks,

John.. 🙂