I have 2 helpdesk users working with me. None of them are domain admins. One of them sometimes is unable to unlock any user account and the problem disappears once he reboots.
Another one who is logged in to a laptop, iphone and ipad at the same time, gets his account locked for no reason after every few hours. On his Outlook he gets a prompt to put in his password and I check on the ADUC, he is locked.
Any ideas what might be wrong ? I check the Login Audit but couldnt find any solution.