I have a 4 station peer to peer network. 3 Computers are Windows 7 Pro, One is XP Pro. One of the Windows 7 computers acts as our "server" and stores our Quickbooks and Act files. I have no problem connecting any of the Windows 7 computers to the "server".
The XP computer connects to the "server" shared drives when everything comes up. As long as both computers remain on, the connection is good, for weeks. If the XP computer is shut down it can't connect back to the shared drives. The only way to reestablish the connection is to reboot the "server".
Both the XP computer and the "server" have static IPs. 192.168.1.240 for the XP computer, 192.168.1.250 for the server. Even when the XP computer can't connect to the shared drive I can ping both computers from each other by host name with out any problem, so I don't think it's a matter of not seeing the computers. I can also browse from the "server" to the XP computer. When I try to browse from XP to the "server" I get a message that it can't connect, it appears to be a permissions message. If I reboot the "server" my shared drives are available.
I don't have any problem with my Windows 7 computers. Any idea what could be going on here? I'm guessing there must be something on the Windows 7 "server" that is blocking the XP computer.