Why Your Internet Is Slow (And How to Fix It)

Slow internet is one of the most frustrating technology problems. Whether you're working from home, streaming your favourite shows, attending online meetings, or gaming, poor network performance can interrupt your day.

The good news is that slow internet isn't always your Internet Service Provider's fault. In many cases, the issue is your home network.

Here's how to identify the most common causes and improve your connection.

1. Your Router Is Outdated

If your router is more than five years old, it may not support today's internet speeds or modern WiFi standards.

A newer WiFi 6 router can improve speed, coverage, and the number of devices your network can handle.

2. Too Many Devices Are Connected

Modern homes often have dozens of connected devices, including:

• Smartphones
• Laptops
• Smart TVs
• Gaming consoles
• Security cameras
• Smart speakers
• Tablets

The more devices connected at the same time, the more demand is placed on your network.

3. Poor Router Placement

Your router should be placed:

• Near the centre of your home.
• On a shelf or desk.
• Away from thick walls and metal objects.
• Out in the open, not inside cupboards.

Small changes in placement can make a big difference.

4. WiFi Interference

Other wireless devices and neighbouring WiFi networks can interfere with your signal.

If available, use the 5 GHz or 6 GHz band for compatible devices to reduce congestion and improve performance.

5. Weak WiFi Coverage

Large homes often have areas where the WiFi signal is weak.

If you regularly lose signal in certain rooms, consider installing a Mesh WiFi system instead of relying on a single router.

6. Background Downloads

Automatic software updates, cloud backups, and large downloads can use significant bandwidth without you realising it.

Check which devices are using your network and pause unnecessary downloads if your connection feels slow.

7. Old Ethernet Cables

If you're using wired connections, older or damaged cables may limit network performance.

Replacing worn cables with quality Cat6 or Cat6A Ethernet cables can help maintain reliable speeds.

8. Your Internet Package Doesn't Match Your Needs

A family streaming 4K video, working from home, and gaming at the same time may simply need a faster fibre package.

Review your household's internet usage before assuming your equipment is at fault.

Quick Troubleshooting Checklist

Before contacting your ISP:

• Restart your router.
• Run a wired speed test.
• Update your router's firmware.
• Check for connected devices you don't recognise.
• Move closer to the router.
• Test another device.
• Check for service outages in your area.

These simple steps often resolve common performance issues.

How Interlink Networking Services Can Help

At Interlink Networking Services, we help South African homes and businesses build reliable networks that support everyday life. Whether you need a new router, Mesh WiFi system, Ethernet cables, or expert networking advice, we're committed to helping you get the best performance from your internet connection.

Improve Your Home Network Today

Browse our Home WiFi Solutions and Networking Accessories & Cables collections to find quality routers, Mesh WiFi systems, Ethernet cables, and networking products.

Need help identifying the cause of your slow internet? Contact Interlink Networking Services and let our networking experts help you find the right solution.