Friday, November 6, 2009

Demoting DC fails with RPC error

I was recently demoting an old domain controller and go an RPC error message that looked like "The RPC server is unavailable". This was that much more undesirable error as everything was ok with DNS and all controllers were communicating with each other with no problem.

Rather simple solution resolved my problem.

1. open sites and services on a DC that is not being demoted
2. Navigate to DC that is not being demoted
3. Select NTDS Settings under that server
4. In the right pane select DC you are demoting, right click and choose Replicate now. You should see "Active directory has replicated the connections." If you do not see such message you probably have some AD or DNS issues.
5. Perform dcpromo on server you are demoting again.

No comments:

Post a Comment