I am having a problem trying to access new 2008R2 DC from 2003SP2 DC to transfer roles. When I try to attach to the 2008 server from AD schema in the console, I am getting a Login attempt failed. The domain controller could not be set.
I can attach from the 2008 DC to the 2003 Server though. I did all the basic checks; DNS is in synch, time is correct on both servers. Everything looks good when running DCdiag and repadmin commands. Any help would be greatly appreciated.