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User accounts locked after DC rebooted.

Posted on 2013-01-24
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Last Modified: 2013-01-30
Our office 2008 domain has 2 domain controllers on it. I needed to reboot one of them and since then users are reporting that their accounts are locked. Sure enough, in AD the option 'Unlock Account' is active but if I select it and ht Apply nothing happens.

Any idea why this has happened i.e. is there something wrong with my AD setup?

Thanks
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Question by:funasset
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Expert Comment

by:Nik
ID: 38813897
When you clicked on the box and clicked apply, user was unlocked even though nothing happened.
If you close the object properties and open it again, you will see that the user is not locked anymore.

Why those users were locked out, I really can't tell. Any info in the event viewer?
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Author Comment

by:funasset
ID: 38813972
That didn't appear to be the case I'm afraid.  The domain controller I rebooted just has a couple of entries in the App log stating -

The winlogon notification subscriber <GPClient> took XX seconds to handle the notification event (CreateSession).

How can rebooting a server cause all accounts to lockout??
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by:Nik
ID: 38814257
I have never heard about this issue before. I will try to investigate more...
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funasset earned 0 total points
ID: 38818203
I'm not sure what actually cleared the problem as it was a bit of a panic job! I restarted both my DCs which included a reboot of the DNS services, flushed DNS caches all over the place and all of a sudden it just decided to play nicely. Thanks Windows.
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Author Closing Comment

by:funasset
ID: 38834490
See previous update.
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