I have a user that cannot login. He has been on the domain for three (3) years. Starting this week, he could not login. The account was not locked out or disabled. I reset his password (blank), and he was able to login. The next day - same thing. The third and fourth day, he was fine. Today, he cannot login again. I reset his blank password, and he's good.
In all my years, I've never seen or heard of this situation. There are fifteen (15) users on the domain, and it is only the one user that has this issue. We've tried this from WinXP Pro SP3 clients and Win7 Pro SP1 clients with the same results. Any thoughts?