I have one folder shared in windows server 2003. All clients couldn't access this folder. All settings about permissions (total control) and users are allowing to "Everybody" access, however nobody could access this folder, including the domain administrator. Always a username and password were asked, but any data login is refused. I ever tried unshare and share again. Ever tried access logged in own server (using: \\server\sharedfoldername) and no access permited.