Cannot connect to DFS (Distributed File System) share on Mac with Authentication Services installed
Distributed File System (DFS) does not work with QAS on Mac. It does work with native apple directory.
This is an Apple issue. An Apple bug has been filed. The bug number is #18487703 for SMB to interact with Active Directory in a way that's compatible with third party Active Directory modules / plug-ins. At this time there isn't a way for Authentication Services to work with DFS on current systems.
Currently being worked on by Apple. The bug number is #18487703.