I am replacing XP with Windows 7 Enterprise on our desktops. I set them up on my workbench and then deploy them. One of the PCs "found" the network when I moved it (same subnet) and created a new network. This new network is shown as unauthenticated and I can't log-on to the domain from it; I can only log-on as a local admin. It is pulling IP and DNS from the server. How can I fix this?