For the LAN issue, please login over SSH and execute these commands:
This will reset your network configuration (including WiFi passwords) and should fix LAN not working after a reboot.
If it doesn't work, force loading Ethernet kernel module:
Thank you for the quick fix!
Reseting the configuration fixed it only partially for me. After reboot I had network, but only DHCP. As soon as I configured the network manually again, the problem came back.
Force loading the kernel module seems to fix it definitely, thought.