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Demoting an AD server

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9 replies

by bennytoh

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I am cuurently having problem demoting a server I joined to the domain just 2 days back. it gives me the error "The Directory service failed to replicate off changes made locally. The DSA operation is unable to proceed because of a DNS lookup failure" i have checked my DNS to make sure it was pointing to myself and that the zone was AD integrated. now all I want to do is to remove this server and reformat it. there is currently one other AD server in my domain. Can anyone please tell me if it is safe for me to delete this DC from the domain and just reformat.

Or is there a more tedious way to manually do what the DCPromo does.

9 replies

by acattr

switch your DNS server settings. Put the other DC running DNS as its primary DNS server.

by henrywi

well you can delete the ntdsutil check the q216498

and replication can be caused by insuficient site link, and the subnet, have you tried pinging the DC?

by wburrows

Try running the dcdiag.exe resource kit utility on both DC's with and without the /v switch. Part of the tests it runs involve DNS resolution and checking to make sure all the appropriate SRV records are present. This utility will usually pinpointthe cause of the problem.

by bennytoh

What i did was to get the forest level admin rights and looked into the dns setting to ensure that it is rightly replicated to my forest domain controller. used a command line tool to remove my old domain information from the domain controller and reinstalled my AD on a new server.

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