My AD level is 2008. I’m using Windows 2008 R2 Enterprise.
FOG adds computers to the domain without a hitch (Windows 7 or XP computers), but if I rename it (thru FOG browser interface), FOG Service in the computer renames the computer but will NOT rejoin the computer to the domain. I guess when the computer is already part of a domain, it should un-join the computer, then re-join.
I have tried renaming directly under Windows, and I always have to unjoin then rejoin to be able to change the computer name correctly on AD. I guess its a limitation imposed by Windows AD.