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bigjimbo813Flag for United States of America

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Account Locked out Constantly

I recently changed my password. The password is constantly being locked out on the domain controller. Failed audit report, reported it was locked out from my workstation (xp). No other machine is being shown in the audits, after shutting down the machine and not using that account, no failed reports are being generated yet the account keeps locking itself.

I changed the password to a different one required change password at logon.
I changed the password cache on the machine to 0.
I disabled the account on the domain controller
I shut down the workstation it was reporting failed audits.
Verified that no services on that machine require that specific account information.
I deleted all network mappings.

After applying all these changes, even disabling the account...it still locks that account.

Any ideas?
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rsivanandan
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Checkout if any of the services run using your account. In that case, they would try to login your old credentials and cause lockouts. Fine 'em if there is one and update the password there.

Cheers,
Rajesh
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ASKER

i posted that i verified all services run on the machine did not use those credentials
even though that machine is shutdown, the lock still continues, yet the failed audit does not report on the DC
Were you able to login at least once ?

Cheers,
Rajesh
intially yes, now that i disabled the domain cache, No
I can't think of anything else, somebody else will be able to dig in more.

Cheers,
Rajesh
I changed the passworkd and unlocked the account. I can login to the machine...but shortly after, the account is locked again.
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prashsax

Ok do this test,

Shutdown your current work workstation.

Unlock your account, change password and use any other workstation for a day.

See, if your account gets locked even without using your old workstation.

If yes, then check if you have left some disconnected Terminal Session on any server.

Also, check if you have logged into some machine using old password and then locked the machine with same old credentials.

net use * /d

also, try connecting to any server your account may be logged into and terminate your connection.

Also, if you ghost your machines (or use some other imaging product similar) it is possible that the net use connections stored in the image are causing your lockout. I had this issue when I imaged 12 machines at one time and after logging in as the local administrator (net use attempted 2 drive mappings per machine) my account got locked out.
I've shutdown the workstation, problem persisted ( i was using another account )
all network shared devices were disconnected. (problem persisted)

ghost wouldn't be an issue as i use a seperate account for that.
Terminal Sessions, I also use a seperate account.

======

If im not mistaken, any windows based machine should report a failed audit to the DC (if audits are configured). This one isnt returning any failed audits other than my workstation initially (before i removed networked devices and powered down the machine). I deleted my old account, and replaced with a new one (to renew the sid) and the problem persisted.
How many DC's you have in your domain.

You need to look into security logs in events viewer on DCs.

I will tell you what Event ID will show you account locked. So you can filter the records.

The event ID will have the machine name due to which your account is being locked out.

Prashsax,

I have checked those audits as mentioned in the initial post. The audits were failing when the workstation was hot. Once the workstation flagged in the failed audits was brought off line, the locks contiuned with no Failed Audits.

I ran a packet sniffer, and found a few other network issues. I disabled the account last night when i left, and the locks have stopped today. I think it was a security leak with the account being compromised when tending to a trouble ticket on site.


As of now consider this self-resolved. Thanks for the input.
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DarthMod
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