Much of the marketing around wireless routers, extenders, and other networking equipment focuses on dealing with range problems—your house is too big, so the back bedroom doesn’t get a strong Wi-Fi signal. But for people like myself who live in apartments or condos in extremely dense urban neighborhoods, range is not the only problem. Interference from neighbors’ networks is the chief villain.

Worse, renters are often prohibited by their leases from making modifications to the apartment like running Ethernet cables inside the walls, or sometimes even pinning Ethernet cables to the outside of the walls. For those apartment dwellers, there are few options.