I updated from 16.04 to 17.04 a couple days ago. After doing so I found that when I connect my Ethernet cable, it doesn't connect or show connection as it did in 16.04. I Have an HP-15 laptop. I checked for drivers in update area, but it didn't find anything related to Ethernet network.
Here is what I did: To do this - in a terminal:
sudo nano /etc/NetworkManager/NetworkManager.conf
change the line managed=false to managed=true
Save, stop and start network manager:
sudo service network-manager restart
But still have the problem.
It looks like it tries to connect to LAN wired connection but then goes directly to WiFi and connects, then doesn't show any Ethernet connection like it did in 16.04. Any help would be appreciated. I'm almost ready to revert to 16.04