We have a domain set with Samba Version 4.0.0beta2. Machines with Windows 7 and Windows XP have no problems to log in but Windows 8.x machine has this problema where the machine joins the domain but no user can after the first reboot. "There are currently no logon servers available to service the logon request". What's could be wrong?
It sounds like the systems attempting to logon to the domain have not been added to the domain. I've seen this error before when a computer is either removed from the domain or the system is not part of the domain and it is attempting to authenticate and join.