Confirming that installing winbind resolves the issue. Thank you @bernd- eg.
I would propose that winbind be upgraded to a Recommends rather than a Suggests for the Samba package. ** Tags added: regression-update -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573221 Title: Regression on 4.3.8 upgrade: clients fail to connect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1573221/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs