After upgrading a file sharing server to macOS 10.15.3 and Server 5.9, we can mount our shared volumes via AFP but can not open them because of permissions.
We can access them through SMB but are then having a very old issue (documented somewhere else in this forum I think) where ACL's have to be propagated again up to 10 times a day.
Remote access to the shares with SMB is also complicated due to classic 445 port issues that we don't have with AFP (port 549).
What I have tried:
Propagated permissions via "view info" screen
Propagated permissions with TinkerTool
Removed permissions with TinkerTool
Again propagated permissions with TinkerTool
Removed, restarted then reinstated all the shares/users-groups in File Sharing/prefs panel.
Restarted server several times
To no avail, problem is still there. What other things should I try?