I think this problems is based on an authentification problem, similar to the report in:
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1572876 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1584809 Title: smbpasswd -r host -U user broken after samba update from 4.1.6 to 4.3.9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1584809/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs