I am trying to join a Win7 Ultimate client to a Win2K ADDC domain. The Win7 receives it's DHCP info correctly, and sees everything on the domain (printer, wifi router, satelite router) but it does not see the Win2k server nor the Win2k Pro box on the network. When attempting to join the domain, the error message is that the Win7 box can not find an ADDC controller. I have tried to upgrade to Win2K3 server, but am getting the same fault. What do I need to do????