We have 4 domain controllers in our domain. All 4 of them are 2003 servers. I am attempting to promote a new server running Server 2012 STD to a domain controller. I receive the following error when attempting to promote:
Verification of replica failed. The forest functional level is Windows 2000. To install a Windows Server 2012 domain or domain controller, the forest functional level must be Windows Server 2003 or higher.
I have checked that the functional level is already set to 2003 in ADUC and DT. I'm not really sure what else to do. Any assistance with this would be much appreciated.