connection timeout raspberry pi 3

Is SSH enabled on Your RPi?

Quote from bmoller

how and where can i check that?

Check here: https://wiki.libreelec.tv/libreelec_settings?s[]=enable&s[]=ssh#tab__services

Quote

Enable SSH:

Set to ON to enable the embedded SSH server. The SSH console can be accessed with username 'root' and password 'libreelec'

I don't know if you mean you get the connection timeout in Kodi when accessing the Windows 10 Share (this indicates that the Kodi libsmbclient is not able to negotiate a suitable protocol with the server, likely you are trying to use SMB1 on the client when SMB1 is disabled on the Windows 10 PC). Or if you get the timeout message in Windows 10 when accessing the LibreELEC Samba server from your Windows PC (by default the LE Samba Server allows only SMB2 and SMB3 connections, both of which your Windows 10 PC should support).

Hopefully you have activated the Samba Server in LibreELEC (just above SSH on/off in the LibreELEC Settings add-on) and you can access the LibreELEC Samba shares. If so, then in File Explorer on your Windows 10 PC type in \\###.###.###.###\Logfiles in the address bar (where ###.###.###.### is the IP address of your LibreELEC client) and open the latest log ZIP file to view the contents (maybe you'll be able to work out the problem), or upload the ZIP file to dropbox/googledrive if you cannot.

If you can't connect to the client with ssh or Samba, and have disabled the Windows firewall etc., then are you sure you're using the correct IP address? Pinging an IP address and getting a response doesn't really prove that the LibreELEC client has a working connection - you could be pinging the wrong device on your network!

This sounds like it is either a router or firewall issue, ie. some problem with your network.