I have a network of about 8 computers that is controlled by an SBS computer. All of the computers use the server as their internet gateway. Everything works great, except when one particular XP computer attempts to connect to the server. It can browse the internet with no problems, but as soon as it tries to join the domain or access a shared folder, the server seems to cut everyone completely off. No shares, no internet. I can disable and re-enable the internet connection to the network on the server, and this resolves the problem (until the computer tries to connect again); however, if i try to repair the connection without disabling it, it fails and complains that it can't clear the ARP cache.
I've scanned the XP computer for viruses and spyware, and it is clean. Any Ideas?