So it seems like this is really related to a stopped (or hanging/crashed?) systemd-networkd.
In subiquity this seems to be enforced via https://github.com/canonical/subiquity/commit/41014408143ece5df9ef000d65c23f9307098905 which is in conflict with newer versions of netplan that try to call `networkctl reload` instead of `systemctl restart systemd-networkd.service` (i.e. https://github.com/canonical/netplan/commit/3ec52c41d1a9b3c011c94f9644a02e99451f4330)
So it seems like this is really related to a stopped (or hanging/crashed?) systemd-networkd.
In subiquity this seems to be enforced via https:/ /github. com/canonical/ subiquity/ commit/ 41014408143ece5 df9ef000d65c23f 9307098905 which is in conflict with newer versions of netplan that try to call `networkctl reload` instead of `systemctl restart systemd- networkd. service` (i.e. https:/ /github. com/canonical/ netplan/ commit/ 3ec52c41d1a9b3c 011c94f9644a02e 99451f4330)