Troubleshooting an internet connection that suddenly drops for your whole home can either be a five-second affair or be a multiple-hour waiting game, and there’s rarely an in-between. The most common method is a quick router power-cycle, but against some of the more common failures, it’s not often successful. One thing that can take your entire network down is a DNS failure, and if your ISP’s DNS resolvers suddenly stop working, there’s only one specific fix for it, and it’s the setting nobody thinks to try during an outage.