I'm not sure what other detail I need to provide. Normally I wouldn't care if I couldn't reach their network remotely as I have other means of connecting, but this client has remote users and the same problem I have has happened to one of their remote users. Here's where it gets strange - I have two other PCs in my home office that are on the same LAN as my business machines and they CAN establish a VPN tunnel to my customer's office and ping all devices on the remote LAN! They have the same OS (Windows XP Pro SP3) as the machines that are not successful. I have this problem on 3 of my office PCs and also if I try this from my server.
After about 30 to 60 seconds the tunnel disconnects without error or notification. Now when I try and connect I establish a tunnel but cannot access resources on the remote LAN whether by IP address or UNC, hostname, etc. THis has worked for well over a year until two weeks ago. I connect to a client site using Microsoft VPN client (pptp).
This just started happening about two weeks ago.
