Same error with 16.04, fresh installed and up2date. 2 moths worked without problem and does not work anymore.
WM in a QNAP server. same as Stephen commended, removing the winbind works for me as workaround. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1430259 Title: Mounting CIFS share intermittent failure (CIFS error code -5) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/1430259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs