It should be noted that while networkd is in main and is supported, it isn't used in any default configuration on Xenial. Thus I don't think "Critical" is justified.
** Changed in: systemd (Ubuntu) Importance: Critical => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1634855 Title: Assertion 'link->state == LINK_STATE_SETTING_ROUTES' failed at ../src/network/networkd-link.c:697, function link_enter_configured(). Aborting. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1634855/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs