Dale needs to buy a router for a complex computer network. What's a good one to buy? Leo says that he uses an Asus AC3200. It's very good and very configurable. A good way to extend a wireless network, though, is to use WDS with the prime router and then a wireless extender/repeater about midway. It's always good to use the same brand. But congestion can kill bandwidth.
Another option is powerline networking, where you use the power wiring in your house as your ethernet network. It's gotten better over the years and it effectively lets you have a wired network without the need of laying cable. You just have receivers plugged into the nearest AC plug. It's only about 20MB per second, though. Check out practicallynetworked.com for more details on how to network your home or business.