An odd problem this one. All the usual checks etc already done (i.e. web searches etc). Various solutions/settings tried no joy.
I have a windows server 2003 box running as our VPN server. I have a laptop running windows vista with a vpn connection (PPTP) set up to talk to it. Sometimes it'll work fine, other times I'll get the error 806 message about GRE protocol, port 1723 etc.
I also have a desktop with the same vpn connection setup and it proceeds to do the same thing. Oddly enough, when one allows me in, the other won't (I don't try and have both connections open at the same time). However, leaving neither connected for about and hour or so (I haven't done a definitive time delay test), means that the one I can connect using changes.
VPN server is set to allocate IP addresses from a static pool, MS-CHAP2 is set to on ... Firewall on the laptop is off, etc.
What I'd like to know is why does work sometimes but not at others ? and if there is a solution to get it working for both machines without problem ?
thanks in advance