SMB question?

Quote from mxlance

So why the need to use smb1 in order to connect.

The LibreELEC Samba server supports SMB1, SMB2 and SMB3. By default the LibreELEC Samba server is configured to accept only SMB2 and SMB3 connections.

Assuming Kubuntu 17.10 is using a version of Samba older than 4.7.0 (Ubuntu 17.10 is using 4.6.7), then Kubuntu 17.10 may not be configured to negotiate better than SMB1, which is why you cannot connect to the LibreELEC Samba server with default configuration.

On your Kubuntu laptop, edit /etc/samba/smb.conf and add the following lines if not already present:

client min protocol = SMB2
client max protocol = SMB3

Now Kubuntu will be able to negotiate connections as high as SMB3_11.

It will not be able to negotiate SMB1 connections - leaving SMB1 enabled is a security risk even if you never use SMB1 connections.

There is a known bug in Samba 4.7.0 which will cause problems - a "File exists" error - if you enable authentication in the LibreELEC Samba server and then try to connect. This issue will be fixed in the next LibreELEC 8.2 release, so for now you will need to disable user authentication in the LibreELEC Samba server.