NT Domain Authentication

[Nushio]

I set up NT Domain auth on an TS5400R with Firmware 3.20-0.15.

It works, I have set several folders and gave users permission to access said folders, but after "a while", the list of users / groups disappears from the WebUI, and users can no longer log in via SMB until we redo the NT Domain Auth process.

[Nushio]

Still haven't managed to find an answer.
After assigning a user new permissions, the NAS disconnects itself from the NT Domain and forgets all signed in users until I reauthenticate it.
Then I have to manually reassign each user. :-/
This is a real pain.