Oh, I apologize...I didn't see the part about it being able to serve other games, it could still be a subnet problem...and looks like one, but this broadens the range. Check your settings on the game server, check for subnet settings on the server. Other than that I don't know the server well enough, windows is obviously working fine, I would check your settings on the client too. The client needs to be on the same subnet if they aren't seperated by a router.