Most home routers broadcast Wi-Fi on two bands: 2.4 GHz and 5 GHz (newer routers add 6 GHz). Your TV or streaming stick connects to one of them, and the choice affects speed, range and how often your stream buffers. This guide explains the difference and how to put your streaming device on the right band.
The key difference
| 2.4 GHz | 5 GHz | |
|---|---|---|
| Range | Longer, better through walls | Shorter |
| Typical speed | Lower | Higher |
| Congestion | Often crowded by neighbours’ networks and other devices | Usually less crowded |
| Interference | Microwaves, Bluetooth, cordless phones and other devices share the band | Less interference |
| Best for | Devices far from the router, smart-home gadgets | TVs, streaming sticks, laptops within a room or two |
TP-Link’s comparison, for example, gives a practical indoor range of around 20 m for 2.4 GHz versus about 15 m for 5 GHz, and notes that 5 GHz can deliver much higher throughput. Real results depend on your router, walls and building materials.
Which band should your TV use?
Use 5 GHz if the signal is good where your TV is. For streaming, the extra speed and lower congestion usually matter more than range.
Use 2.4 GHz if:
- The TV is several rooms or a floor away and 5 GHz drops out.
- The device only supports 2.4 GHz (common on older or very cheap devices).
Better still: if 5 GHz is weak at the TV, improve the coverage (mesh node, access point or cable) rather than falling back to the crowded 2.4 GHz band. See Wi-Fi vs Ethernet for streaming.
How to tell which band you are on
- Many routers broadcast separate names, such as
HomeWiFiandHomeWiFi-5G. - Some TVs and sticks show the frequency in Settings → Network → Network status or similar.
- Your router’s app or web page usually lists connected devices and their band.
Band steering and Smart Connect
Many routers use one network name for both bands and decide which band each device uses. This is called band steering or Smart Connect. It is convenient, but it sometimes leaves a stationary TV on 2.4 GHz.
If your TV keeps landing on the slower band:
- Check whether your router lets you give the 5 GHz band its own name.
- Connect the TV to that 5 GHz name.
- Keep phones and smart-home devices on the combined network.
How to move your device to 5 GHz
- Open the device’s Settings → Network (or Wi-Fi).
- Choose the 5 GHz network name, or forget the current network and reconnect while close to the router.
- Run a speed test on the device to confirm the improvement.
Other Wi-Fi tips for smoother streaming
- Router placement: central, high and in the open, not inside a TV cabinet.
- Channel selection: if neighbours’ networks crowd yours, let the router choose the channel automatically, or pick a less used one.
- Firmware updates: keep the router’s software up to date.
- Fewer heavy users at once: game downloads and cloud backups compete with your stream.
- Restart the router occasionally to clear temporary problems.
Does 6 GHz (Wi-Fi 6E and Wi-Fi 7) help?
The 6 GHz band offers even more capacity with less congestion, but even shorter range, and only newer devices support it. Most streaming sticks and TVs today still use 2.4 or 5 GHz, so 5 GHz remains the practical choice.
Frequently asked questions
Why can’t my TV see the 5 GHz network?
Either the device does not support 5 GHz, or it does not support the specific 5 GHz channel your router uses. Some older devices cannot see certain channels; setting the router’s 5 GHz channel to a lower one (for example 36–48) often solves it.
Is 5 GHz bad at going through walls?
It weakens faster than 2.4 GHz through walls and floors. Within a room or two of the router it is usually the better choice; further away, improve coverage with a mesh node or a cable.
Should I turn off the 2.4 GHz band?
No. Many smart-home gadgets and older devices only support 2.4 GHz. Keep both bands on and move only your streaming devices to 5 GHz.
Summary
For a TV or streaming stick, 5 GHz is usually the better band: faster and less crowded, as long as the signal is strong where the device sits. If it is not, improve coverage rather than settling for 2.4 GHz. If casting from your phone also lags, the same advice applies; see how to cast streams from your phone to your TV. Still buffering on 5 GHz? Work through how to stop buffering on live streams.
Sources and further reading
Menus and app availability change with software updates. If a step looks different on your device, check the device or app maker’s help page linked above.
