I have the same problem with Vista as well. When using uTorrent or any other p2p program, I'm sometimes unable to establish new connections. Only reboot fixes the problem. "An attempt was made to access a socket in a way forbidden by its access permissions" is the error reported by uTorrent. I've tried disabling Windows Firewall but the problem persist. Like Tassadaru and bkraptor, I have ICS enabled. Could it be the cause of these problems? I'm not using a router, the other computer is connected directly to my other onboard LAN adapter. Don't know what else to tell you other than that it's very, very annoying. Hopefully this will get fixed asap.
