I have a tough one.
My domain user account is periodically getting locked out. I have downloaded some troubleshooting tools and have found that something is causing a bad password to be thrown at the domain controller every 15 minutes exactly. It is not coming from my local workstation (I don’t think). I have no services running with my account credentials. I have no scheduled tasks running with my old password (that I can find). Security logs on the domain controller do not give enough info to diagnose the problem. And, the Netlogon.log file does not show any unusual activity.
Here is the weird part. If I have Outlook running on my local machine, connected to the Exchange server, my account does not get locked out, and the bad password count is reset to zero pretty often. If Outlook is not running, I get locked out after the 5 bad password count is reached.
