Correct. I'm only pointing out that in this spesific case it had nothing to do with the robustness of the application. More specifically: A better application

Correct. I'm only pointing out that in this spesific case it had nothing to do with the robustness of the application. More specifically: A better application might have warned you about the failing part so that you won't have to go looking for it. Fixing the problem would still include either replacing OpenDNS or working around it.