This should be fixed since 4.2.0, see https://www.samba.org/samba/history/samba-4.2.0.html
Winbindd/Netlogon improvements ============================== The whole concept of maintaining the netlogon secure channel to (other) domain controllers was rewritten in order to maintain global state in a netlogon_creds_cli.tdb. This is the proper fix for a large number of bugs: https://bugzilla.samba.org/show_bug.cgi?id=6563 https://bugzilla.samba.org/show_bug.cgi?id=7944 https://bugzilla.samba.org/show_bug.cgi?id=7945 https://bugzilla.samba.org/show_bug.cgi?id=7568 https://bugzilla.samba.org/show_bug.cgi?id=8599 ... ** Bug watch added: Samba Bugzilla #6563 https://bugzilla.samba.org/show_bug.cgi?id=6563 ** Bug watch added: Samba Bugzilla #7944 https://bugzilla.samba.org/show_bug.cgi?id=7944 ** Bug watch added: Samba Bugzilla #7945 https://bugzilla.samba.org/show_bug.cgi?id=7945 ** Bug watch added: Samba Bugzilla #7568 https://bugzilla.samba.org/show_bug.cgi?id=7568 ** Bug watch added: Samba Bugzilla #8599 https://bugzilla.samba.org/show_bug.cgi?id=8599 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/526464 Title: intermittent authentication: check_ntlm_password: Authentication for user [someuser] -> [someuser] FAILED with error NT_STATUS_ACCESS_DENIED To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/526464/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs