---
title: "Troubleshooting slow Wi-Fi at home"
description: "Six modem-placement and network fixes that make a noticeable difference in ten minutes or less."
url: "https://dev.www.lightningip.com.au/insights/troubleshooting-slow-wifi-at-home"
canonical: "https://dev.www.lightningip.com.au/insights/troubleshooting-slow-wifi-at-home"
updated: "2026-07-18"
---

# Troubleshooting slow Wi-Fi at home

Six modem-placement and network fixes that make a noticeable difference in ten minutes or less.

Most "slow internet" complaints turn out to be a Wi-Fi coverage problem, not a plan problem. Here's where to start.

## 1. Move the modem to a central, elevated spot

Wi-Fi signal degrades through walls and floors. A modem tucked in a cupboard or corner will always underperform compared to one in an open, central location.

## 2. Check for interference

Microwaves, baby monitors and older cordless phones can all interfere with the 2.4GHz band. If your devices support it, switch to 5GHz for less congestion.

## 3. Restart it occasionally

Modems and routers benefit from an occasional restart, clearing memory and reconnecting to the best available channel.

## 4. Update your modem's firmware

Manufacturers regularly patch performance and security issues. Check your modem's admin page for available updates.

## 5. Add a mesh point for larger homes

If you've got dead zones in back bedrooms or garages, a single router often isn't enough — a mesh system extends coverage without the drop-off you get from traditional Wi-Fi extenders.

## 6. Confirm it's actually a Wi-Fi issue

Run a speed test with a laptop plugged directly into the modem via ethernet. If that's fast but Wi-Fi is slow, the problem is coverage, not your plan.