Demoting child DC

[Darshan Diora]

Hi
When i am trying to Demote a child DC i get the following error.how can
i demote my child DC

The operation failed because:

The directory service failed to replicate off changes made locally.

The DSA operation is unable to proceed because of a DNS lookup failure

 

[Herb Martin]

It probably has little to do with "child" DC unless
it's the LAST one of that domain (then it needs to
tell the Domain Naming Master to kill the domain
name in AD for the whole forest.)

It is probably that same old set of DNS issues:
Dynamic DNS
DCs using the internal dynamic DNS in THEIR
OWN client properties (NIC\IP\DNS server)

Restart NetLogon (on DCs) if you change either of these items
to correct the problem.

Clients using internal DNS too

 

[Matjaz Ladava [MVP]]

This is probably due to problems with replication. Use repladmin /showreps
to see your replication partners. Is this the last DC in your child domain
and you want to remove child domain completely ?
Also run dcdiag /v and netdiag /v to diagnose your domain status.

--
Regards

Matjaz Ladava, MCSE (NT4 & 2000), Windows MVP
(e-mail address removed)
http://ladava.com

 

[Matjaz Ladava [MVP]]

Then you can just switch it off, and use
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q230306 to clear
your child domain in parent domain. This is only good if you can't remove it
trough dcpromo.

--
Regards

Matjaz Ladava, MCSE (NT4 & 2000), Windows MVP
(e-mail address removed)
http://ladava.com

 

[Darshan Diora]

Hi
switched off my child DC which was also my last DC under that domain.
tried to remove it by following the article given by you, but i receive the
error as below

DsRemoveDsDomainW error 0x2162(The requested domain could not be deleted
because
there exist domain controllers that still host this domain

Please let me know now as how to demote this child DC

Regards
Darshan Diora

 

[Matjaz Ladava [MVP]]

Sorry, to respond you late (I was on a short 5 days vacation). At what point
do you get this error ? On which DC are you doing this procedure ?

--
Regards

Matjaz Ladava, MCSE (NT4 & 2000), Windows MVP
(e-mail address removed)
http://ladava.com