How to Improve Wi-Fi for Streaming: 12 Fixes That Actually Work

Your broadband may be fast, but if the Wi-Fi reaching your TV is weak or unstable, streaming will still buffer. The good news: most Wi-Fi problems can be fixed without paying for a faster plan.

Here are 12 practical ways to improve Wi-Fi for streaming, starting with the free fixes. For how much speed you actually need, see our guide to internet speed for streaming.

First, measure the problem

Before changing anything, get a baseline:

1. Run a speed test next to the router.
2. Run one at the TV (or on a phone held next to it).
3. Note the difference, and test again on a busy evening.

If the speed at the router is good but poor at the TV, Wi-Fi is your bottleneck — keep reading. If both are poor, the issue is likely your broadband line or provider.

1. Move the router somewhere better

Router placement is the single biggest free improvement.

• Central in the home, not tucked in a corner.
• Raised — on a shelf, not on the floor.
• In the open — not inside a cabinet or behind the TV.
• Away from thick walls, mirrors, fish tanks, metal and large appliances.

Wi-Fi signals spread outwards and slightly downwards. A router on the floor behind a sofa can lose a surprising amount of range.

2. Use the right Wi-Fi band

Modern routers broadcast on several bands:

• 2.4 GHz — longer range, slower, more crowded.
• 5 GHz — faster, less interference, shorter range.
• 6 GHz (Wi-Fi 6E/7) — fastest and cleanest, shortest range.

For a TV in the same room or one wall away, 5 GHz is usually best. If your router combines bands under one name (“band steering”) and the TV keeps picking 2.4 GHz, temporarily split them into separate network names so you can choose.

3. Pick a less crowded channel

In flats and terraced houses, dozens of networks may compete for the same channels. Most routers choose automatically, but not always well.

• Use a Wi-Fi analyser app on a phone to see which channels nearby networks use.
• On 2.4 GHz, stick to channels 1, 6 or 11, which don’t overlap.
• On 5 GHz there are many more channels — choose one with few neighbours.

4. Update your router’s firmware

Router manufacturers fix bugs and improve performance through firmware updates. Check the router’s app or admin page and enable automatic updates if available. If your router is provided by your internet company, it often updates itself — but it’s worth checking.

5. Restart regularly

Routers are small computers. Restarting clears memory and resets connections. If streaming feels sluggish, a restart is a quick first step. Some routers let you schedule a restart in the early hours.

6. Reduce interference

Common sources of interference include:

• Microwave ovens (2.4 GHz band, while running).
• Cordless phones and baby monitors.
• Bluetooth speakers close to the router.
• Christmas lights and some LED drivers.
• Other routers or extenders placed too close together.

Move the router or the interfering device, or switch the TV to 5 GHz.

7. Cut down on bandwidth hogs

Every device shares your Wi-Fi’s airtime. During movie night:

• Pause large downloads and game updates.
• Schedule cloud backups for overnight.
• Check for forgotten devices streaming in other rooms.

Many routers show which devices are using the most data, and some let you prioritise the TV — see our guide to router settings for streaming.

8. Disconnect devices you don’t use

Old phones, tablets in drawers and forgotten smart plugs all keep checking in. Removing them from the network slightly reduces congestion — and improves security.

9. Try a wired or semi-wired connection

If the TV is within reach, a cable beats any Wi-Fi tweak. If it isn’t, a powerline adapter can carry the network through your electrical wiring. We compare these options in Wi-Fi vs Ethernet for streaming.

10. Upgrade to a mesh system for larger homes

In multi-storey homes or long layouts, a single router can’t reach everywhere. A mesh system uses several units that work together as one network.

Option	Good for	Watch out for
Single router	Flats, small homes	Dead zones in far rooms
Wi-Fi extender	One weak room on a budget	Can halve speed
Mesh system	Larger, multi-floor homes	Higher cost
Mesh with wired backhaul	Best performance	Needs cables between units

Place mesh units roughly halfway between the router and the dead zone — not inside the dead zone itself.

11. Replace an old router

If your router is more than five or six years old, it may only support older Wi-Fi standards. A modern Wi-Fi 6 or newer router handles many devices at once far better. Internet providers will sometimes upgrade an old router free on request.

12. Check the streaming device itself

Sometimes the problem is the receiving end:

• Older streaming sticks may only support 2.4 GHz or older Wi-Fi standards.
• A stick plugged directly behind a TV can have its signal blocked — an HDMI extension cable often helps by moving it a few centimetres away.
• Smart TVs with weak built-in Wi-Fi may perform better with a dedicated streaming device.

If your smart TV itself feels slow, our guide on fixing a slow smart TV covers the software side.

A quick troubleshooting order

If you’re short on time, try these in order:

1. Restart router and TV.
2. Switch the TV to 5 GHz.
3. Move the router to a better spot.
4. Pause other heavy activity.
5. Run a cable or powerline adapter.
6. Add mesh for larger homes.

Common Wi-Fi myths

“More bars means faster.” Signal strength helps, but interference and congestion matter too.

“Extenders always help.” Basic extenders can halve speeds; mesh or wired access points are better.

“A faster plan fixes Wi-Fi.” Not if the bottleneck is between the router and the TV.

When Wi-Fi isn’t the problem

If speeds are poor even next to the router, or every device struggles at the same time, the issue is upstream. Contact your provider with evening speed test results. And if buffering continues on a strong connection, work through our streaming troubleshooting guide.

The bottom line

Better Wi-Fi rarely needs a new broadband plan. Good router placement, the right band, a clean channel and fewer competing devices fix most problems — and where they don’t, a cable, powerline adapter or mesh system will.