Note: Don’t confuse a “mesh” router and a Wi-Fi extender, although they can both solve the same problems. However, if you are looking for something a little less pricey, we have picked other great models as well, including some very affordable options. Our favorite is the TP-Link RE650, which offers high speeds and MU-MIMO compatibility. As much as a decent router can alleviate that problem, Wi-Fi extenders can push your signal even further. If your Wi-Fi router lacks enough oomph to reach all your devices or leaves you with dead zones around the home or office, you’ve got a problem.