I am having quite an issue right now since I just implemented a second domain controller on my domain. The 2nd AD setup went off like a charm. I used the wizard to do it and had no problems. I saw both controllers on the network and both databases look identical. No issues came up yesterday with any of my users. But when I came in this morning only half of my users were able to login properly using my logon batch and the other half were not mapped to any network drives. So what I did to temporarily resolve the issue was to shut down the new controller and everyone was able to logon with no problem. Does anyone have any ideas why that would happen? Thanks for any help.