Active directory user is repeatedly locked out

I ame having all sorts of fun with an active directory user (cbromley) whose passwords are being cached to their local machine. In addition their account is being locked out even when they aren’t attempting a password. For example if I was to log the user out, within about 10 minutes her account would have been locked again, presumably because of something running somewhere else that is attempting to use a previously stored password to log her in. If we change the password on her account and run “control keymgr.dll” from her machine we can see that credentials are being stored for exchange and delete them, quickly log her in before her account is locked again and this temporarily solves the problem. Any suggestions are much appreciated, thanks, Kev.

 

Have any mobile devices running active sync?
Has this always been the case with this account?

 

Thanks for the reply but have now managed to resolve this. It turned out to just be the mail profile (under Control Panel) - it must have been created manually as it seemed to be saving credentials. I deleted the user's mail profile, created a new one called "Outlook" and logged her back in. She was then reconnected with her exchange mailbox upon starting Outlook, and chaging passwords seems to be no problem now.