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Where should I place my WiFi extender?

Published in Wireless Networking 4 mins read

To optimize your wireless network coverage, the ideal place to position your WiFi extender is halfway between your main router and the area where you frequently use your wireless devices that need a stronger signal. This strategic placement ensures the extender receives a strong signal from your router while effectively rebroadcasting it to the far corners of your home or office.

The Ideal Placement Principle

Think of your WiFi extender as a relay station. It needs to be close enough to your router to pick up a strong, stable signal, but also close enough to the "dead zone" or weak signal area to extend that coverage effectively. Placing it exactly halfway maximizes its ability to both receive and transmit robustly.

Why "Halfway" Works

  • Optimal Signal Reception: If the extender is too far from the router, it will receive a weak signal, and therefore, it will only be able to extend a weak signal, offering little improvement.
  • Efficient Signal Distribution: If the extender is too close to the router, it largely duplicates the router's existing strong signal area, providing minimal benefit to distant zones. Placing it halfway ensures it covers the gap effectively.

Key Factors to Consider for Optimal Placement

Beyond the "halfway" rule, several environmental and practical factors influence your extender's performance.

1. Signal Strength Indicator

Many WiFi extenders come with LED indicators that show the strength of the signal they are receiving from the router. When placing your extender:

  • Look for an indicator that shows a good or strong signal. This usually means green lights or a high number of illuminated bars.
  • Avoid locations where the indicator shows a weak signal, as the extender won't be able to effectively boost connectivity.

2. Obstacles and Interference

WiFi signals can be significantly degraded by physical obstructions and electronic interference.

  • Physical Barriers: Walls (especially concrete, brick, or thick plaster), floors, large metal objects (like refrigerators, filing cabinets), and even water (fish tanks) can absorb or block WiFi signals. Try to place the extender where there is a clear line of sight to both the router and the devices you want to connect.
  • Electronic Interference: Other electronic devices operating on similar frequencies (2.4 GHz or 5 GHz) can cause interference. Common culprits include:
    • Microwave ovens
    • Cordless phones
    • Bluetooth devices
    • Other WiFi networks (from neighbors)
    • Baby monitors
      Keep your extender away from these devices.

3. Central Location

If possible, place the extender in a central location within the area you want to cover, rather than at the very edge. This helps distribute the boosted signal more evenly.

4. Power Outlets

WiFi extenders require continuous power. Ensure your chosen location has an accessible power outlet and avoid using extension cords if possible, as they can sometimes introduce minor interference or power inconsistencies.

5. Height and Orientation

  • Elevated Position: Placing the extender higher up, like on a shelf or mounted on a wall, can often improve signal propagation, as it helps signals clear minor obstructions.
  • Antenna Adjustment: If your extender has external antennas, try adjusting their orientation to fine-tune signal reception and transmission. Experimenting with different angles can make a noticeable difference.

Practical Steps to Find the Best Spot

Finding the perfect spot might require a bit of trial and error.

  1. Initial Placement: Plug in your extender roughly halfway between your router and the dead zone.
  2. Check Signal Indicator: Observe the extender's signal strength indicator. Is it showing a strong connection to the router?
  3. Test Performance: Take your wireless device (phone, laptop) to the area that previously had poor coverage. Check your internet speed and signal strength.
  4. Adjust and Re-test: If the performance isn't satisfactory, move the extender a few feet in either direction (closer to the router or closer to the dead zone) and re-test.
  5. Use a WiFi Analyzer App: For advanced users, mobile apps like Wi-Fi Analyzer (available on various app stores) can help visualize signal strength and interference, guiding you to the optimal placement.

Common Mistakes to Avoid

Do's Don'ts
Place halfway between router and weak spot Place too close to the router (redundant)
Position in a central, open area Hide it in a cabinet or behind large objects
Elevate for better signal propagation Place near microwaves or cordless phones
Check signal strength indicators Ignore signal strength lights
Test performance after placement Set and forget without testing coverage

By carefully considering these factors and following the practical steps, you can significantly improve your home's WiFi coverage and eliminate frustrating dead zones.