Friday, December 26, 2014

DCPROMO fails with: 'Failed to configure the service NETLOGON as requested' Server 2003

We have been working with a client on getting rid of the 2003 domain controllers. Came across one domain controller that wouldn't demote. Ran dcpromo and got this:

The operation failed because:

Failed to configure the service NETLOGON as requested

The reason for my clients failure was because the primary DNS server was the server itself. So DC1 with an IP of, had the first DNS entry as

After I changed it to the new DNS server IP, I ran dcpromo again and it worked like a charm, no reboot needed. I did do a ipconfig /flushdns, just because though. Also, according to Microsoft you should not have a domain/DNS server pointing to itself as the first entry. The first DNS entry should be another DNS server, and use the local host address of as the second entry. I won't go into detail as why, but a quick search should give you all you need. Enjoy!

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