I believe the following link is very relevant: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1766377
If you believe it's relevant have you tried the workarounds it contains? e.g. "ethtool -K eth0 gso off gro off tso off" .. If you shared logs (as asked multiple times) we'd be able to confirm your box produces the same hang messages. No logs = No problem.
NB: LE11 nightlies are here: https://test.libreelec.net/ .. If you want to test safely, stop Kodi, rename /storage/.kodi to .kodi-old and then drop the udpate .tar file in /storage/.update and reboot. You will start with a clean Kodi install - which means we don't "upgrade" all your existing config to LE11 and the downgrade is simply the reverse process; stop Kodi, move folders around so the old folder so the active one and drop the older 'update' file in /storage/.update and reboot again. It's messing .. but low drama.