I have 2 different homes and I set up a router/lan in both homes and use the same name for both workgroups. I moved one computer to the other home and now I am unable to connect that computer to the other lan. It will connect through to the internet, but not on to the lan (I can't share files). all computers run XP Home.

I have tried changing all the workgroup names to a new name and I have ensured that all the computers are set to enable NetBIOS over TCP/IP and every other thing I could think of. HELP!