Networking Technology

Do I Need a Modem for Mesh Wi-Fi?

20 January 2025 MicronTech 4 min read

Mesh Wi-Fi systems are widely used to provide more even Wi-Fi coverage across different parts of homes and offices. Although many users assume that mesh devices provide internet on their own, these systems need a modem connection.

How Does Mesh Wi-Fi Work?

Mesh Wi-Fi is a system made up of a main router and satellite units connected to it, which together extend wireless coverage. The internet connection itself still comes from a modem (on fiber lines, a modem or ONT device).

The modem receives the connection from your internet service provider (ISP) and passes it to the main mesh router. The satellites then distribute the Wi-Fi signal to different parts of the home.

What to Consider When Setting Up a Mesh System

  • ✅ Putting your modem in bridge mode prevents double NAT. If the modem cannot be bridged, running the mesh system in access point (AP) mode is another option
  • ✅ Connect the mesh router to the modem with an Ethernet cable
  • ✅ Make sure your modem's speed capacity is compatible with the mesh system
If your fiber connection is 1 Gbps or faster, whether the mesh system's WAN port and the link between units (backhaul) support that speed directly affects performance.
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