Actually that's only part of the answer. Today (after a system suspend)
the periodic reset happens as before, but the home router IP is almost
never set on it (I've counted only 2 occurrences in the logs today). So
it seems like the reset triggered b...
I also see the periodic systemd-resolved restart - right now it's about
every 2 minutes. Each time something adds the IPv6 address of my home
router to the list of DNS servers (in addition to the VPN's DNS servers
already present) and subsequent DNS ...