Hi, I'm trying to install/configure OTRS on a Windows Server 2012 with IIS (and MSSQL as RDBMS). So far, the install itself succeeded, the database has been created etc. (i.e: I stepped through install.pl). But when I try to login with root@localhost and the given password the login-form just reappears, as if I just opened the page. If I enter a wrong password, an error message is shown "your password is wrong" etc. After a login with the correct credentials OTRS at least creates some rows in the sessions tables, so to some extent the login is being processed. Also, otrs.log contains one line for each "login": [Wed Aug 6 12:10:42 2014][Notice][Kernel::System::Auth::DB::Auth] User: root@localhost authentication ok (Method: sha256, REMOTE_ADDR: x.x.x.x). otrs.log.error has no specific errors (only "SecureMode active", because I tried to access install.pl). Is there a way to get a more verbose logging? I found something like $Self->{Debug} = 3; for Config.pm, but this logs only (a lot of) calls to Config.pm->Get into otrs.log.error. For me the problem looks like as if the server does not tell the browser about the session that's being created for the user: No Session-Key/redirect in URL, no Cookie sent in Response-Header (even after setting SessionUseCookie = 1;), and showing the login form as if I'm not logged in, i.e.: no valid session. What should usually happen after login? Which URL should be accessed, what does a valid URL with session key look like? I could try to manually type in the url with the session key from the database, maybe it's just a redirect problem? Or maybe someone has even a concrete idea what's wrong, googling for "login does not work" is not very productive. Greetings Elmar