This still happens in Xenial. #7 has it right, if the IPv4 and IPv6 'use this connection only for resources on its network' are different then the default DNS server is dropped.
It is very easy to make this mistake and very hard to figure out that is the problem! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1304437 Title: After connecting to OpenVPN server the default DNS is no longer available To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-openvpn/+bug/1304437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
