After building a Windows 2016 DHCP server I attempted to authorise the server in AD but kept getting the message “The specified servers are already present in the Directory Service”. I have never had a Windows server with this host name so was a but confused.
The solution was simple enough, I opened sevices.msc and restarted the “DHCP Server” service
worked for me on Server 2016 after I setup a tree domain
Perfect! such a quick solution to our problem. worked for me on our old Server 2008 R2 after a power outage. Clicked refresh and saw the green ticks.
Indeed I though my migration had failed!!!