When connected to WiFi near a router, browsing is usually seamless—videos load quickly, messages send instantly, and downloads proceed smoothly. However, moving farther from the router often results in reduced speeds and interruptions. Why does this happen?
Why Internet Speed Decreases with Distance from the Router
The main reason for this issue is the distance between the device and the router. Being more than 10 metres away or having physical obstacles like walls and furniture can significantly impact WiFi signal quality, reducing its reach and stability.
Other factors affecting internet speed include:
- Electromagnetic Interference: Devices like microwaves, cordless phones, or Bluetooth gadgets can disrupt WiFi signals, especially when positioned between the router and the connected device.
- Building Materials: Thick walls, reinforced concrete, metal, or glass can block or weaken signals, reducing speed over longer distances.
- Number of Connected Devices: Networks overloaded with too many connected devices may experience slower speeds, especially for devices farther from the router.
- Router Capacity: Older routers may not have the range or power to cover large or multi-level spaces effectively.
- Router Placement: Installing the router in a corner, near the floor, or surrounded by furniture can impede signal propagation, diminishing its effectiveness.
- Outdated Equipment: Routers with older WiFi standards, like 802.11b/g, cannot perform as well as modern routers supporting 802.11ac or 802.11ax.
How to Improve WiFi Connection at Home
These steps can help enhance WiFi quality for a smoother browsing experience:
- Strategic Router Placement: Position the router centrally and at an elevated spot in your home, away from thick walls, large furniture, or appliances that block signals.
- Avoid Interference: Keep the router away from devices that cause electromagnetic interference, such as microwaves, cordless phones, and Bluetooth gadgets.
- Upgrade Your Equipment: Use a router with modern standards like WiFi 5 (802.11ac) or WiFi 6 (802.11ax) for better speed and range.
- Change the WiFi Channel: Configure the router to operate on a less congested channel. Tools like inSSIDer can help identify the best channel to avoid interference from neighbouring networks.
- Extend Coverage: Install signal extenders, WiFi repeaters, or mesh systems to ensure a strong connection throughout your home.
- Update WiFi Passwords: Regularly update your WiFi password to prevent unauthorised devices from consuming bandwidth.
- Optimise Settings: Adjust router settings such as frequency bands. Use 2.4 GHz for broader coverage and 5 GHz for higher speeds over shorter distances.
- Monitor Usage: Identify high-data-consuming devices and prioritise essential ones through the router’s quality of service (QoS) settings.
- Restart Your Router Periodically: A simple reboot can resolve temporary issues and improve overall performance.
Why Keep the Microwave Away from the Router
Microwaves can interfere with WiFi signals because they operate on the same 2.4 GHz frequency band. When in use, a microwave emits electromagnetic waves that generate noise and disrupt the router’s signal. This interference can slow down your connection, cause interruptions, or even lead to complete signal loss for nearby devices.
By following these guidelines, you can ensure a stable and reliable WiFi connection, even in larger homes or areas with potential signal obstacles.