[wrxtasy]

What has happened in the past is that the C2 booting of eMMC has been so quick to start that Router <--> C2 handshake procedures have not had time to complete. Some routers are slower than others.

Luckily there is a setting in LibreELEC to help with this...

Settings > LibreELEC > Network > Advanced Network Settings > Wait for Network before starting Kodi.