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AD services unavailable due to: "Server not operational."

Posted on 2005-03-30
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Last Modified: 2012-06-27
Our PDC server (W2K Sp4) is running AD, however when I try and open AD users & computers I get the message "Naming information cannot be located because: The server is not operational. Contact you system admin to verify that your domain is properly configured and is currently online." We have been getting this for some time now. Recently I installed w2k sp4 as we were running sp3, I have also checked the ip filtering is set to "permit all". any solutions ?
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Question by:karaka
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Expert Comment

by:Nirmal Sharma
ID: 13670780
>>>Naming information cannot be located because:

Only DNS and nothing else.

When you open any Active Directory tool the tool will try to retreive naming information of the domain controller from DNS server because you are trying to access a LDAP server so service location record for the domain controller must be registered.

NOTE: - All Active Directory Tools run as a Local Procedure Call.

Try one of the following solutions: -

1. netdiag /fix
2. dcdiag /fix
3. restart Netlogon service.
4. Manually import DC SRVs from \Winnt\System32\Config\Netlogon.dns file.

Let me know.

Thanks
SystmProg
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by:karaka
ID: 13694366
Thanks for your reply, I have since discovered that MS winsock proxy client is installed on the DC and is enabled. I have disabled this and AD services are now working again. I'm not too sure why this service is or was installed but am investigating further. This call can be closed......
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Nirmal Sharma earned 2000 total points
ID: 13694783
Please put a request in community support to close this question.

Thanks
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by:Nirmal Sharma
ID: 13695101
Thanks!
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