Been trying to add a 2012 DC to a 2003 Domain and having multiple issues.
Background: Lost one of three domain controllers (irrecoverable crash) few months ago. Successfully siezed FSMO roles onto one of the remaining servers and have been operating in that manner since. Just setup 2012 HyperV server and created VM to become the first of two new (VM) DCs.
For the last week, have been stuck at Deployment Configuration screen of the ADDS Wizard. Generally get error that cannot access list of domains in the forest. On occassion, get past this only to be stuck again at Additional Options.
Have put far too much time into this. Need to resolve and move on so can replace the DCs and consider raising upgrade functional level to 2012.