Fixed unmanaged ethernet connection in Ubuntu 20.10

fix_ethernet.md

Scenario

• In Ubuntu the Ethernet connection was shown as unmanaged wired connection.
• This happened after using sudo pppoeconf to configure a pppoeconfiguration.

Solution

• Open /etc/NetworkManager/NetworkManager.conf with sudo previlege:

sudo gedit /etc/NetworkManager/NetworkManager.conf

• Change the line managed=false to managed=true
• Restart network manager with

sudo service network-manager restart

• I got the following error:

Failed to restart network-manager.service: Unit network-manager.service not found.

• Started and enabled the network manager:

systemctl start NetworkManager
systemctl enable NetworkManager

• Restarted the network manager service:

sudo systemctl restart NetworkManager.service

Reference

• Askubuntu answer

Thanks, this worked for me. I'm using Ubuntu 22.04.3

this worked here, ubuntu 22.04. tks