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Domain Account Lockout Frequently.

Posted on 2010-04-07
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Last Modified: 2012-06-21
We are facing issue in domain account which is getting frequently locked out. This issue is happening once we restart the system. we tried clering cache passwords , deleting browsing history.... We have win 2003 server DC and XP as client OS with sp3 installed on XP.
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Question by:YogeshSLK
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by:Raheem05
ID: 30004141
Hello,

Before I make any assumptions as I dont have eyes on the environment please run the AD lockout tools

http://www.microsoft.com/downloads/details.aspx?FamilyId=7AF2E69C-91F3-4E63-8629-B999ADDE0B9E&displaylang=en

And verify the source of the lockout or directly from the event viewer on the relevant DC, Malware such as conflicker are known to do this or it could be a service etc, I would advise making sure AV is up to date and finding the source computer and running a scan.
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by:Data-Base
ID: 30004396
Hi

we used to face such problem!
one of the main issues are the clients, did they map the shared folders and set it to be connecting at login?

when I removed that and I made a program that map the shared folders for them only when they need everything worked OK

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by:mudassirahmed
ID: 30005771
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YogeshSLK earned 0 total points
ID: 30690636
Hello All,

This issue got resolved after i analysed this in my primary domain controller Event Viewer with event id 644. There i found the username which was getting frequently locked out and their was the computer name as well where the account was getting locked out. I shutdown that machine as it was locked by that user their and he was trying in other machine with the new password. This helped me to resolve the issue.
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by:YogeshSLK
ID: 30690886
Thanks
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