Hey all,
after the update to 8.1.1 I got Samba problems as well. I read the announcement at least three times to understand how the LibreELEC Samba configuration works and also googled a lot, but I still can't figure it out.
I run LibreELEC 8.1.1 on a Rpi3, minimum Samba version is set to 2, maximum to 3.  I can access the Samba shares from Windows 10, however I can't access them from Linux (KDE neon user edition, based on Ubuntu 16.04). When trying to browse my shares with Dolphin (version 17.08.1), I only get an error that the connection timed out, so I tried it with smbclient.
When running smbclient (version 4.3.11-Ubuntu), I get the following output:
	
	
		smbclient -L 192.168.5.200
WARNING: The "syslog" option is deprecated
Enter user's password: 
protocol negotiation failed: NT_STATUS_INVALID_NETWORK_RESPONSE
	
	 
However, when I set the maximum client protocol Version, I get a proper response:
	
	
		smbclient -m smb3 -L 192.168.5.200
WARNING: The "syslog" option is deprecated
Enter user's password: 
        Sharename       Type      Comment
        ---------       ----      -------
        Update          Disk      
        Videos          Disk      
        Music           Disk      
        TV Shows        Disk      
        Recordings      Disk      
        Downloads       Disk      
        Pictures        Disk      
        Emulators       Disk      
        Configfiles     Disk      
        Userdata        Disk      
        Screenshots     Disk      
        Logfiles        Disk      
        Backup          Disk      
        Picons          Disk      
        OMV             Disk      
        IPC$            IPC       IPC Service (LibreELEC)
        Server               Comment
        ---------            -------
        Workgroup            Master
        ---------            -------
	
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This works both with setting the maximum client protocol version to "smb2" and "smb3". kio-smb 
I found a thread on LinuxQuestions.org, where the solution was to explicitly set the server protocol version to SMB3. I tried to set that in /storage/.config/samba.conf, which seemed to have no effect.
I noticed that in /etc/samba/smb.conf no protocol options are set, so where is this done? Is it possible to set the server protocol version explicitly without the min/max settings?
Regards
Zapp!