Not the original bug reporter but I can confirm that the samba update [sudo apt-get install samba] has fixed the problem on OS X 10.11.4
** Attachment added: "Screen Shot 2016-05-04 at 17.59.11.png" https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1572301/+attachment/4655747/+files/Screen%20Shot%202016-05-04%20at%2017.59.11.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572301 Title: Regression with 4.3.8 upgrade, Mac OS X machines can't connect To manage notifications about this bug go to: https://bugs.launchpad.net/samba/+bug/1572301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs