This seems to be the same as https://bugzilla.samba.org/show_bug.cgi?id=11994 It's fixed in Samba 4.5.0 and will also be fixed in the next 4.4 and 4.3 maintenance releases.
** Bug watch added: Samba Bugzilla #11994 https://bugzilla.samba.org/show_bug.cgi?id=11994 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1572876 Title: After Samba upgrade can't access unpassworded windows share To manage notifications about this bug go to: https://bugs.launchpad.net/samba/+bug/1572876/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
