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Troubleshooting

How to Change Your WiFi Channel to Reduce Interference

If your WiFi is slow or unstable, switching to a less-used channel can make a significant difference — especially on the crowded 2.4GHz band.

Updated 2026

  1. 1

    Understand WiFi channels

    On 2.4GHz, channels 1, 6 and 11 are the only non-overlapping ones. On 5GHz there are many more non-overlapping options.

  2. 2

    Scan for the least congested channel

    Use a WiFi analyser app (e.g. WiFi Analyzer on Android, or Wireless Diagnostics on Mac) to see which channels nearby routers are using.

  3. 3

    Log in to the router admin panel

    Open your gateway IP in a browser and sign in.

  4. 4

    Change the channel

    Find Wireless Settings or WiFi Settings and change the channel from Auto to your chosen channel. Save and let the router restart.

Frequently Asked Questions

Should I use Auto channel selection?
Auto is a reasonable default but routers don't always pick the best channel. Manual selection after scanning is more reliable.
How often should I change the channel?
Only when you notice interference or a new neighbour's router moves onto your channel. You don't need to change it routinely.