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Troubleshooting user account locked out issue ?

Hi,

My manager got issue with his user account locked out every random time so i have to unlock it every now and then, what is the best way to troubleshoot this issue ?
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Senior IT System Engineer
Asked:
Senior IT System Engineer
3 Solutions
 
pclinuxguruCommented:
Look at the event logs on the domain controller for failed logins.. They generally will have an ip address on it.
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Prashant GirennavarCommented:
Generally account lockouts happens , due to services/schdule task/network drive mapped with the old credentials , If your manager is using smartphone , you need to check for cached credentials on his handheld.

The simplest way to find the account lockout source in Active directory is to use the Microsoft account lockout tool (Note - Only application on windows server 2003/2008 DC).

You can download the tool from below link.

http://www.microsoft.com/download/en/details.aspx?id=15201

Troubleshooting Active directory Lockout Issue.

http://msexchangeguru.com/2012/03/08/ad-lockout/

The event log ID for account lockout

windows server 2003 - 644

windows server 2008 - 4740


Follow below procedure and see it helps you.

1. Download microsoft lockout status tool from below link

  http://www.microsoft.com/en-us/download/details.aspx?id=15201

2. Install it on Client Computer

3. Put the target name (user account which is getting locked) on target tab

4.It will list out Date/time and DC on which account lock out events are happening

5.Check the Latest date and time and DC name,. Login to the DC where the evet is getting generated.

6.Go to security event------>search for 644 (microsoft Server 203) or 4740 (W2K8)----->open the event

7.It will list the account information and Computer name from which account is gettng locked

8.Login to the computer and check for any services or schduled task

Hope this information helps you to trace the source

Thanks,

_Prashant_
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Venugopal NCommented:
Check this post , will help you to trace the account lockout reason.

http://www.experts-exchange.com/Software/Server_Software/File_Servers/Active_Directory/Q_27764593.html
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Thank guys.
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