Could you give some details on what type of installation you did and what desktop you are using? On an Ubuntu Desktop netplan.io should be installed and when the NetworkManager backend is in use then the unmanaged device list is emptied
the behaviour is explained in that changelog entry https://launchpad.net/ubuntu/+source/network-manager/1.2.2-0ubuntu8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885127 Title: ethernet interfaces explicity excluded from management in globally- managed-devices.conf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1885127/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
