Choose the band that stays stable at the TV, not simply the one with the higher number.
If your router offers more than one wireless band, it can be tempting to assume the higher number is always better. In reality, Wi-Fi bands have different strengths, and the layout of your home matters more than the label.
Try this first
Work through these checks in order. Stop once the problem is resolved.
- 1Check which bands the streaming device supports.
- 2Test 5 GHz near the router, then test 2.4 GHz at the usual viewing location.
- 3Keep the band that performs reliably; do not disable household bands used by other devices.
The difference in everyday terms
2.4 GHz generally reaches farther through obstacles but is often crowded by neighbouring networks and household devices. 5 GHz can offer higher throughput and more room for busy connections at shorter distances, but the signal usually weakens more quickly through walls. Some newer equipment supports 6 GHz as well, with its own range and compatibility considerations.
Choosing for a television or streaming stick
For a streaming device close to the router, 5 GHz may provide a more responsive connection. For a TV two rooms away, a stable 2.4 GHz connection may outperform a weak 5 GHz signal. Some routers automatically steer devices between bands, which can be useful but may occasionally confuse older equipment. Check what your television actually supports before changing network names.
How to identify the real bottleneck
Run a connection or playback test at the television during a busy household period. Compare performance on each available band, and observe both average speed and repeated stalls. If buffering is still present on every band, do not assume that buying a new router will solve it. Try a wired connection or compare against another app to narrow the cause.
Make small changes first
Raise the router off the floor, keep it away from large metal objects, and avoid hiding it behind the television. Place a mesh unit where it receives a usable signal rather than in the worst dead spot. When changing Wi-Fi settings, keep a note of the originals so you can reverse a change if another device stops connecting.
Avoid confusing 5 GHz Wi-Fi with mobile 5G service; these are different technologies.
Frequently asked questions
Is 5 GHz the same as 5G mobile data?
Should I disable 2.4 GHz?
Further reading
Useful manufacturer or independent guidance where this topic overlaps with their published advice:
General educational guidance assembled from device behaviour, common troubleshooting principles and linked manufacturer information where available. It is not a claim that we have personally tested every device, app or provider. Menu names and service terms can change.