Sorry for not following up sooner. no further ideas how to debug, but I think it's reasonably clear this is a dnsmasq issue rather thana resolvconf issue. Reassigning.
** Package changed: resolvconf (Ubuntu) => dnsmasq (Ubuntu) ** Changed in: dnsmasq (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1642973 Title: DNS stops working when changing networks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1642973/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs