That's indeed what seems to be the case, and this has already been debugged. The issue is that the code that does the override on upgrade looks for the wrong version of NetworkManager, since it has been updated in Xenial.
This change has been in the process of being tested; I'll upload to the release proper as soon as I know that it really does work. The netplan code itself should be created only on new installs; for an upgrade, it's not there, and thus we need to explicitly write an override for NM via NM postinst. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1676547 Title: No network connectivity after upgrade from 16.04 to 16.10 Status in network-manager package in Ubuntu: In Progress Bug description: nplan was installed during the upgrade process but I had no network connectivity after upgrading. Apparently, no package wanted to manage my ethernet connection. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: ubuntu-release-upgrader-core 1:16.10.10 ProcVersionSignature: Ubuntu 4.8.0-41.44-generic 4.8.17 Uname: Linux 4.8.0-41-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Mon Mar 27 11:34:04 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2013-01-16 (1531 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130116) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: ubuntu-release-upgrader UpgradeStatus: Upgraded to yakkety on 2017-03-17 (10 days ago) VarLogDistupgradeTermlog: modified.conffile..etc.update-manager.meta-release: [modified] mtime.conffile..etc.update-manager.meta-release: 2013-10-08T06:39:09.818913 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1676547/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
