I have an MT running 2.9.38 as a PPTP server, using local accounts under /ppp secret.
With XP, all works fine. With Vista, I ran into problems using VJ header compression, but with that disabled, Vista PPTP clients no longer kill the CPU on the board.
But they still can’t connect. Next thing to look at is MTU.
I’m wondering if anyone else has run into this, and found a fix for it yet.
I’ve also run into problems connecting Vista PPTP clients to Cisco PPTP servers. No solution for this yet.
Some people are reporting success by disabling MS-Chap (use only ms-chap-2) and disabling MPPE-40.
Regards
Andrew
The MS-CHAP version 1 authentication protocol has been deprecated in Windows Vista.
http://support.microsoft.com/kb/926170
Usage of better authentication protocol will solve the problem.