I’m in a bad situation. Last week I joined an UCS to our domain as a domain controller. Everything is ok until I start taking over to be primary AD. The process got error and every clients cannot work well as it should be. Because lack of time, so we decided to restore the AD system to the state before migrating to UCS. The system restore either got error, the primary AD cannot start any AD service, so we have to turn on the backup AD, and this action help us to recover the AD system. But it causes an issue: the DNS system appear some record which make a new UCS (we reinstall a new one) cannot join to our domain because it detect that there is an UCS server running in domain system. Everytime I join to domain, it always connect via SSH protocol and of course unsuccessfully, I tried to delete some records related to the “old” UCS master in DNS but not helpful.
Please help me to solve this. I need to join the current UCS to our domain and start the takeover process again a.s.a.p.