After pulling my hair for several days, I found this: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842
/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf has the following content: [keyfile] unmanaged-devices=*,except:type:wifi,except:type:wwan Removing the file and restarting NetworkManager did the trick. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1658921 Title: NetworkManager does not manage wired connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1658921/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
