users can't skip the login screen. login.aspx have integrated authentification they are logged into a window domain NT group, marked Nt based, is imported as application role
I'm having this same problem. I followed these instructions found in the Report Security document.
Go to Admin > Settings and check "Enable the pass-through authentication". The Anonymous access has to be disabled for the virtual directory or the login.asp page. Basic Authentication or Integrated Authentication has to be chosen instead. Make sure that the NT group the user belongs to is imported as application role. Insure that the role is marked to be NT based.
All the above has been completed correctly but the Report Portal login screen still appears.