Info I've gathered about this issue so far: The netplan should be written to this location:
/etc/netplan/01-network-manager-all.yaml And should contain: # Let NetworkManager manage all devices on this system network: version: 2 renderer: NetworkManager See this reference: http://bazaar.launchpad.net/~ubuntu-core-dev/livecd- rootfs/trunk/view/head:/live-build/auto/build#L196 If the file is missing, it can be manually added. Ubuntu transitioned to netplan right before version 1.2.2-0ubuntu8. See here: https://lists.ubuntu.com/archives/ubuntu-devel/2016-July/039464.html Additionally, this is related to these 2 bugs: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1638842 https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1658921 When 1.2.2 was released, a globally managed file was created (/etc/NetworkManager/conf.d/10-globally-managed-devices.conf), and a canceling file was also created (/etc/NetworkManager/conf.d/10-globally- managed-devices.conf). https://git.launchpad.net/network-manager/tree/debian/network- manager.postinst#n48 For some reason, either the override file or the netplan file is missing on upgrades. Between the two of them, users are left without fully managed Ethernet and networking when upgrading from 16.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1676547 Title: No network connectivity after upgrade from 16.04 to 16.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1676547/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
