Just installed LibreELEC 8.1.1 on an Intel machine to act as client of a main Kodi installation on a Windows machine.
LibreELEC client is connected to TV through HDMI.
Established connection to the Kodi server through UPnP - no problem to find it.
Working normally, but no sound. Noted that audio output was not set to the HDMI option, so changed to that - sound appeared.
As I powered up again, could not connect to the UPnP server anymore.
Removed the UPnP connection and tried to add it again, but no UPnP server found.
Important: connectivity to the PC that has the main Kodi installation does exist - I can browse its shared folders through SMB.
Tried to restart the main Kodi but that did not fix things.
What may be happening?