Why Is My WiFi Slow Even with Fibre?

If you've recently upgraded to fibre but your WiFi still feels slow, you're not alone. Many people expect fibre internet to automatically deliver fast wireless speeds throughout their home, only to find buffering videos, dropped connections, and frustrating dead zones.

The good news is that, in most cases, the fibre connection isn't the problem. Your home network is.

1. Your Router Might Be the Bottleneck

Internet service providers often include a basic router with your fibre package. While these devices work well for light browsing, they may struggle when multiple people are streaming, gaming, attending video calls, or connecting smart home devices.

Upgrading to a modern WiFi 6 router can significantly improve speed, coverage, and the number of devices your network can handle.

2. You're Too Far from the Router

WiFi signals weaken as they pass through walls, floors, furniture, and appliances. If your router is tucked away in a cupboard or installed in one corner of the house, devices on the opposite side will experience slower speeds.

Placing your router in a central, elevated location often makes a noticeable difference.

3. Too Many Connected Devices

Today's homes often have dozens of connected devices, including smartphones, laptops, smart TVs, gaming consoles, cameras, speakers, and IoT devices.

An older router may struggle to manage this traffic efficiently, causing slower performance for everyone.

4. WiFi Interference

Neighbouring WiFi networks, cordless phones, microwave ovens, baby monitors, and Bluetooth devices can interfere with wireless signals.

Modern dual-band and tri-band routers automatically choose better channels to reduce interference and improve performance.

5. You Need Better Coverage

If parts of your home have weak or no signal, adding a WiFi extender may help. For larger homes or double-storey properties, a mesh WiFi system usually provides a much better experience by creating one seamless wireless network throughout the house.

6. Your Devices Matter Too

Older phones, tablets, and laptops may not support the latest WiFi standards. Even if you install a high-performance router, older devices won't always achieve the fastest possible speeds.

7. Test Your Fibre Correctly

Before blaming your internet provider, connect a laptop directly to your router using an Ethernet cable and run a speed test.

If the wired speed is close to what you're paying for but the wireless speed is much lower, the issue is almost certainly your WiFi setup rather than your fibre connection.

When Should You Upgrade?

Consider upgrading your networking equipment if:

• Your router is more than four years old.

• You have more than 10 connected devices.

• You experience WiFi dead zones.

• Video calls frequently freeze or disconnect.

• Streaming buffers regularly.

• Online gaming suffers from lag.

How Interlink Networking Services Can Help

At Interlink Networking Services, we help South African homes and businesses build reliable, high-performance networks. Whether you're looking for a faster router, a mesh WiFi system, quality Ethernet cables, or expert networking advice, we're committed to helping you choose the right solution for your needs.

Browse our Home WiFi Solutions collection to find products designed to improve speed, coverage, and reliability.

Need help choosing the right networking equipment? Contact Interlink Networking Services for expert advice and let us help you get the most out of your fibre connection.