[SOLVED] Cannot connect to Samba shares

[Don Pedro]

Hello, here's a problem I have with xbian/Kodi I don't quite understand:

I try to populate the music, series, etc. media folders via a samba share residing on a Linux machine. The machine is not being displayed if I chose browse and if I manually enter the remote machine like so:
"smb://ServerName/Sharename/" xbian instantly(!) replies with "Connection timed out".

Now you'll probably say "your share and/or samba are not configured properly", however:

• I can access mentioned share from a windows machine without problems
• I have several samba shares on different machines, a raspi-2, a cubietruck, a debian stretch machine (which operates as my tvheadend server), all of them are accessible to the windows machine but none of them can be mapped as a Kodi media folder, always "Connection timed out"
• If I click on "browse" I see the rotating circle for 2-3 secs and then I'm shown an empty list, no machines are shown at all, the browse list is empty
• I also cannot connect to a SMB share on the Windows machine in xbian, so this seems not to be a samba problem
• No dialog appears that allows me to enter any login credentials for any share I try to connect to, the "Connection timed out" massage comes before and it then aborts
• On the contrary I can connect to mentioned machines if I chose to map via UPnP. So all the machines I try to connect to are visible to my xbian machine via LAN

ANy idea what's wrong here? I'm running xbian on a raspi-3, Kodi 17.5.

BR

Don