newly created open directory users can't connect to file share
I have a very strange problem with a legacy OD & file server running 10.6.8 Server.
I create a new OD user, and they can log in to a bound client Mac using their credentials, but they cannot access the file shares on the same server. The new users are in the same permission groups as older users who are able to access the shares. In the Server Admin, the new users don't even show up in the Users & Groups panel.
Here is where it gets strange. If I reboot the server, this situation is rectified (temporarily). After the reboot, the new users have proper permissions and can access the file shares normally. However, at some point during the night after the reboot, the directory reverts back to the original state! Older users (created before this month) are able to access everything normally. Any newly created users can't access the file shares!
Does anyone have any idea what could be causing these problems, and making them reoccur?
The Server is a 2011-vintage Mac Pro. There is also an OD replica running 10.6.8 Server on a similar Mac Pro.
Mac Pro, Mac OS X (10.6.8), OS X Server