Active directory account lock every time

Posted on 2010-11-15
Last Modified: 2012-06-21
Hi all,

I am on a domain 2003, DC are in standard version and SP2, and i have an issue about one account. This account is lock sometimes whitout (human) logon failure. I search in security logs but nothing i don't find lock log and logon failure.

Can you help me?
Question by:makanzore
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Expert Comment

ID: 34135062
Did you check all DCs event logs?

Author Comment

ID: 34135105
I checked all dc in site

Expert Comment

ID: 34135126
Does the user of this account have a mobile device with access to emails ?
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Expert Comment

ID: 34135135
remove the paasword lockout policy and check. Beacuse if you have any password lock out policy and if he saved his password in any software and changed his password then this kind of problem will come.

In my case i saved my password in one toolbar then my account was locking every often.
LVL 15

Expert Comment

ID: 34135171
You need to be looking for Netlogon errors. DNS sounds like it is causing the issue. Check the PC and make sure it is using the correct ip addresses for DNS resolution.
LVL 24

Accepted Solution

Awinish earned 500 total points
ID: 34135261
LVL 26

Expert Comment

by:Leon Fester
ID: 34135630
Use the Account Lockout Status tool from microsoft to see which Server requested that the account is locked. Then check the Security log for details of that account which is being locked.

Author Comment

ID: 34136511
No account have no mobile device and mailbox, it is a services account
I can't remove policy i am on production, and password didn't change and no body change it
I can't install any application on DC, so i try Account Lockout Status tool from my desktop and i have no result when i chose select target (with correct account)
LVL 24

Expert Comment

ID: 34136957
Did you use netwrix tool?
LVL 26

Expert Comment

ID: 34137809
Want to try using the acctinfo.dll? to get more details about the account

Account Lockout and Management Tools

View Additional User Information in AD Users and Computers
LVL 24

Expert Comment

ID: 34137857

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