Typing https://someserver.com:8443 Accepting certificate... Browses redirects to login.php3 Okay, now i`ll enter admin and pass and have no error (Yep, admin and pass is accepted, if not - i have an error). Sceen just loops back to login form. I`ll tried some browser`s, and some of it - normally logining in, but many is not. I`ll tried to delete cookies, caches and etc and for some browsers it helps. I`ll also check /opt/psa/admin/sessions for session create on such "failed login", and session is seems to be created normally. Many of a clients is asking, why ? And why we don`t see it in Plesk 8.X ?