What are the contents of /etc/resolv.conf when this happens? What is the output of 'dpkg -l dnsmasq\*'?
What are the contents of /etc/NetworkManager/NetworkManager.conf? Your bug report shows that this system was installed with 16.10 media and then upgraded to 17.04. How long ago did you upgrade? Have you rebooted since upgrading? ** Changed in: dnsmasq (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1672099 Title: DNS loop, >5,000 queries per second for minutes at a time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1672099/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs