I know this is really old, but I encountered this just now, I have the same issue in two different computers with Ubuntu 22.04 (both upgraded from 20.04), and the /etc/resolv.conf had just a "nameserver 127.0.0.53", I suspect this is an issue with the upgrade.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1982553 Title: Search domains not working after upgrading to Ubuntu 22.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/1982553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs