Hello, I'm trying to replace / migrate a 2003 AD to a 2012R2 AD. On the 2003 server I've run AD Prep and upgraded the forest, domain, etc. It shows that it has been upgraded and all is well. But when I go to Active Directory Users and Computers and try to raise the functional level, it just shows that the current domain level is 2003 and a message that says "The domain is operating at the highest possible functional level"
Not sure where to go with it as everything looks right, but I just don't have the option to raise the level. Any ideas would be appreciated.