One of the guys in the office switched off one of our DCs which we will be decommissioning soon but he left it off for too long and now we are getting this error when doing a dcpromo:
The operation failed because:
Managing the network session with server.domain.local failed
"Logon Failure: The target account name is incorrect."
What should we do to demote this domain controller, I have turned it off as I'm worried it will cause problems to the working DCs