Hello,
I have run in to a strange problem with clients behind a Cisco Pix fw trying to initiate PPTP connections to other sites, hope somebody can give me a hint as I'm not really a networking guru..
Anyway, my client has a Cisco Pix 515 as their main firewall. Clients behind it use the PPTP-client in Windows 2000/XP to iniate connections to other customers. For most of the time, this works fine except for one connection: This connection will connect nicely and let users connect to resources on the other side of the tunnel, but it will "freeze" and then disconnect after about 2 minutes every time. As far as I can see, packets from the other size of the tunnel will suddenly stop being returned, and after a couple of seconds without any received packets, Windows will consider the connection hung-up.
When I test the same connection from my broadband at home it will fork fine. Does anybody have a clue what could cause this?
Best regards, Trond Hindenes Norway