This looks like it would be a "duplicate" of bug 1682499; we should disable DNSSEC by default.
Can you please verify if setting DNSSEC=off fixes your issue? ** Changed in: systemd (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1681597 Title: DNS broken after >50m of uptime To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1681597/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs