After taking some updates requiring reboot on my lubuntu 16.04 I am now unable to connect to the internet (neither Ethernet nor WiFi).
Could someone guide me through please? Thank you very much in advance! Markus
I found the solution here: How do I fix DNS resolving which doesn't work after upgrading to Ubuntu 13.10 (Saucy)
LAN was back after this:
sudo dpkg-reconfigure resolvconf
In order to get the WiFi back I needed to:
sudo systemctl restart NetworkManager
Thanks for help.