Not to put too fine a point on it, but actually that is exactly what
this requires. Microsoft phased out the SMBv1 protocol, (NetBios is
dead, long live NetBios), in favour of their new protocol: Web Services
Dynamic Discovery (WSD).  There has been a lot of discussion and work as
to exactly HOW WSD should be implemented for SAMBA and gvfs and what to
do in future if Microsoft do another flip of the switch.

Granted this has taken a lot of time, but as previously mentioned, all
of this discussion and development is dependent on people gratuitously
handing over their free time.  If you want up to date support and to
demand for things to be done, might I politely suggest you fork out for
a Red Hat enterprise subscription.

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https://bugs.launchpad.net/bugs/1828107

Title:
  gvfs can't list shares from smb servers that disabled SMB1

Status in gvfs:
  Unknown
Status in gvfs package in Ubuntu:
  Triaged

Bug description:
  After bug #1778322 is fixed (just needs a gvfs rebuild with newer
  samba), samba machines will start to show up again in the "windows
  network" tab in nautilus. But if a server has disabled the SMB1
  protocol, nautilus will show an error when that server is clicked on,
  instead of showing the shares list.

  Even with SMB1 disabled, it should still be technically possible to
  get a share list, since smbclient can do it:

  andreas@nsnx:~$ nmblookup -A 192.168.122.101
  Looking up status of 192.168.122.101
        D-NO-SMB1       <00> -         B <ACTIVE> 
        D-NO-SMB1       <03> -         B <ACTIVE> 
        D-NO-SMB1       <20> -         B <ACTIVE> 
        ..__MSBROWSE__. <01> - <GROUP> B <ACTIVE> 
        WORKGROUP       <00> - <GROUP> B <ACTIVE> 
        WORKGROUP       <1d> -         B <ACTIVE> 
        WORKGROUP       <1e> - <GROUP> B <ACTIVE> 

          MAC Address = 00-00-00-00-00-00

  andreas@nsnx:~$ smbclient -L 192.168.122.101 -N
  WARNING: The "syslog" option is deprecated

        Sharename       Type      Comment
        ---------       ----      -------
        print$          Disk      Printer Drivers
        pub_no_smb1     Disk      
        IPC$            IPC       IPC Service (d-no-smb1 server (Samba, Ubuntu))
  Reconnecting with SMB1 for workgroup listing.
  protocol negotiation failed: NT_STATUS_INVALID_NETWORK_RESPONSE
  Failed to connect with SMB1 -- no workgroup available

  andreas@nsnx:~$ smbclient //192.168.122.101/pub_no_smb1 -U ubuntu%ubuntu -m 
NT1
  WARNING: The "syslog" option is deprecated
  protocol negotiation failed: NT_STATUS_INVALID_NETWORK_RESPONSE

  andreas@nsnx:~$ smbclient //192.168.122.101/pub_no_smb1 -U ubuntu%ubuntu -m 
SMB2
  WARNING: The "syslog" option is deprecated
  Try "help" to get a list of possible commands.
  smb: \> dir
    .                                   D        0  Fri May  3 18:16:38 2019
    ..                                  D        0  Fri May  3 18:15:24 2019
    hello.txt                           N       21  Fri May  3 18:16:12 2019
    hello-from-nsnx.txt                 A        9  Fri May  3 18:16:38 2019

                  20509264 blocks of size 1024. 13121800 blocks
  available

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