Using the
net -U <username> ads join
will break PowerBrokers connection to AD. For example, you may find that your AD accounts may longer be able to SUDO.
The proper way to link SAMBA to AD via PowerBroker is this:
samba-interop-install --install
Follow the official documentation from
http://download1.beyondtrust.com/Technical-Support/Downloads/files/pbise/Manuals/PBIS_Samba_Integration_Guide_V8.0.pdf