[support] Log in fail

Hi, I've been working on a site for a week and suddenly log in fails. I'm User 1 will access to the server. Doesn't matter what I do, clear cookies, password reset I still get... Access denied You are not authorized to access this page. I couldn't find a help file that described how to fix this. I'd had an admin working a different country reset my password to "12345678" And still can't log in. Any clues? Yani