You have to assign your users "LiveCycle Workspace User" Role. To grant this role for all the users in your new domain go to<br />Adminui -> Home > Settings > User Management > Users and Groups. There search for a Group "All Principals in <your domain name>". And assign the above role to that group.<br /><br />This should enable your users to log in to workspace
I feel like a moron. I knew i had to assign roles, but for the life of me i couldn't find them anymore.