How to improve Wi-Fi at home

At a glance

First distinction

Wi-Fi link speed and internet-service speed are different layers

Security baseline

Secure the home network and keep network equipment supported and updated

Overview

Slow internet at one device can come from the broadband connection, the local Wi-Fi link, congestion, interference, distance, walls, device limitations, or the service being used. The fastest way to improve a home network is to test layers separately instead of immediately buying a faster internet plan. Compare performance near the router, farther away, and when possible over Ethernet to identify whether the bottleneck is the internet connection or the wireless path inside the home.

Measure before replacing equipment

Run comparable tests near the router and in the problem area, and compare with a wired connection when practical. If wired performance is healthy but distant Wi-Fi is poor, placement, coverage, interference, or backhaul is the likely area to improve. If wired performance is also poor, the modem, router, service plan, provider, or remote service may be the limiting layer.

Improve coverage deliberately

Place the access point as centrally and openly as practical, reduce avoidable obstructions, and use modern security settings. Larger homes may benefit from additional access points or mesh nodes, especially when those nodes have strong backhaul. Avoid adding repeaters blindly because an extra radio hop can improve reach while reducing available throughput.

Sources and review

MOOR's explanatory text is supported by the following source links.

1. Broadband Speed Guide — Federal Communications Commission
2. How to Secure Your Home Wi-Fi Network — Federal Trade Commission