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Networks & Wi-Fi

Why Is Your Home Wi-Fi So Slow? 6 Fixes That Actually Work

10 April 20265 min read

Load-shedding and fibre problems get blamed for a lot, but nine times out of ten, slow home Wi-Fi is caused by the router itself or where it's placed. Here are the fixes that make a real difference.

1. Move your router (this alone often doubles speed)

Wi-Fi signal drops fast through walls, TV cabinets, and metal. Put your router in the open, high up, in the middle of the house — not stuffed behind the TV or in a corner cupboard.

2. Switch to the 5GHz band for close-up devices

Most modern routers broadcast two networks: 2.4GHz (longer range, slower) and 5GHz (shorter range, much faster). Devices in the same room as your router should use 5GHz.

3. Add a mesh system for larger homes

If you have a double-storey house or thick walls, a single router will never cover everything. A mesh Wi-Fi system uses two or three units that hand devices between them seamlessly. It's the fix we recommend most often in Pretoria.

4. Update your router's firmware

Router manufacturers release firmware updates that patch security holes and improve speed. Log into your router's admin page every few months and check for updates.

5. Change your Wi-Fi channel

In apartments and suburbs, your neighbours' Wi-Fi networks can jam yours. A quick channel scan and change to a less-crowded channel often removes lag spikes and disconnects.

6. Replace old hardware

If your router is more than 5 years old — or was the free one from your ISP — it's almost certainly holding you back. A modern Wi-Fi 6 router with proper placement makes fibre feel like a different service.

We install and configure home and office Wi-Fi across Pretoria — including full mesh coverage, cabling, and secure guest networks. Get in touch for a free quote.