It shouldn't be marked as invalid. I can't access Shared Folders of Windows 10 using Ubuntu 17.10 on Nautilus, I found a workaround, use option -m SMB3 (I have to change smb.conf).
julian@e01a27166:/var/log/samba$ smbclient -L //10.80.35.54 -U julian.alarcon -m SMB1 WARNING: Ignoring invalid value 'SMB1' for parameter 'client max protocol' WARNING: The "syslog" option is deprecated Enter julian.alarcon's password: protocol negotiation failed: NT_STATUS_CONNECTION_RESET julian@e01a27166:/var/log/samba$ smbclient -L //10.80.35.54 -U julian.alarcon -m SMB3 WARNING: The "syslog" option is deprecated Enter julian.alarcon's password: Domain=[CARACOL] OS=[] Server=[] Sharename Type Comment --------- ---- ------- ADMIN$ Disk Remote Admin C$ Disk Default share CARACOL Disk Downloads Disk IPC$ IPC Remote IPC Registro Disk Connection to 10.80.35.54 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND) NetBIOS over TCP disabled -- no workgroup available Workaround: Edit /etc/samba/smb.conf Add this line in [global] section: client max protocol = SMB3 Then restart Samba services with: sudo systemctl restart smbd sudo systemctl restart nmbd Now I can connect to shared folder in Windows 10 from Nautilus (Ubuntu 17.10) ** Changed in: samba (Ubuntu) Status: Invalid => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1598463 Title: samba client negotiates down to NT1 instead of up to SMB3_11, doesn't happen with Windows 10 client To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1598463/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs