WiFi Modem Range Extenders: Compatibility and Setup

Only if the modem has built-in WiFi, as a modem-router gateway does. A standalone modem needs a wireless router or access point to create a WiFi network.

A modem links the home network to the internet service, while a router directs traffic among local devices and commonly provides WiFi. Some devices combine both functions.

Usually an extender can join a compatible WiFi network, but check the gateway’s bands, security and provider settings against the extender documentation.

If WiFi is strong near the gateway but weak farther away, improve placement or extend coverage. If the connection is poor everywhere, investigate the modem, router or broadband service first.