I have a Windows 2008 network which was working fine on Friday. On Tuesday I tried to add a new server to the domain and set some Group Policies. When I had issues applying the policies I ran dcdiag on the member servers and the primary DC. It generated lots of errors and the primary DC said it was having issues connecting to itself.
I tried several things and could not get it working. I then had the bright idea to restore the server from backup. I booted into Directory Services Restore mode and ran a restore of the system state including AD and rebooted the server. i still had the same issues so I went to the backup domain controller seized the RID and other roles from the primary and removed AD from the primary.
When I ran DCPromo it would not do a standard uninstall i had to do a /forceremove followed by a /removebinaries. I then rebooted the server and added AD back onto the server. When i ran DCPromo to add it back into the domain it told me it could not find any GC even though the backup domain controller is a GC.
I then had the bright idea to reboot the backkup domain controller. Now no one can log onto the Domain.
Any suggestions on how to reenable login