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Active Directory Users and Computers error

I received the following error when opening ADUC from my laptop:

Naming information cannot be located for the following reason:
The server is not operational.
If you are trying to connect to a somain controller running Windows 2000, verify that Windows 2000 Server Service Pack 3 or later is installed on the domain controller, or use the Windows 2000 administration tools.  For more information acout connecting to domain controllers running Windows 2000, see Help and Support.

It was working a week or so ago.  The server is pingable and I can run ADUC from the domain server itself.  My users account is a member of the Domain Admins user group, which as a member of the Administrators group.

Any ideas?

Thanks,
    DAve
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dauyeung
Asked:
dauyeung
2 Solutions
 
joedoe58Commented:
Can you connect from other clients? Do you have any events in the event log?
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rlogCommented:
Try to open Computer Management. Can you connect to the server from here? Possible the RPC service could have been stalled. Rightclick your computer and connect to another.
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dauyeungAuthor Commented:
Fixed.  It looks like it was because I did not have a WINS Server designated.


FYI:  I received the following errors in the system folder of Event Viewer.

Event Type:      Error
Event Source:      AutoEnrollment
Event Category:      None
Event ID:      15
Date:            29/04/2005
Time:            7:16:39 AM
User:            N/A
Computer:      -----
Description:
Automatic certificate enrollment for local system failed to contact the active directory (0x------).  The specified domain either does not exist or could not be contacted.

Event Type:      Error
Event Source:      Userenv
Event Category:      None
Event ID:      1030
Date:            29/04/2005
Time:            7:35:42 AM
User:            ----\-------
Computer:      --------
Description:
Windows cannot query for the list of Group Policy objects. A message that describes the reason for this was previously logged by the policy engine.

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