TV & streaming · Checked September 2026
WiFiXpert Compatibility Score — LG smart TV
Wi-Fi aerials point backwards into the wall, so a TV on a bracket often gets a worse signal than your phone in the same room.
Usually fine, with a couple of catches
Eight checks, same for every device. The eight numbers below add up to 68.
The eight checks
| What we check | Rating | Points |
|---|---|---|
Works on 2.4 GHz Falls back to the long-range band, which then buffers on 4K. | Good | 13/14 |
Works on 5 GHz Uses the faster band, but only if the signal reaches behind the TV. | Supported | 12/14 |
Modern Wi-Fi security Some sets need the router's security relaxed, which we don't recommend. | Older sets struggle | 9/12 |
Happy on mesh Wi-Fi Stays put, so roaming rarely matters. | Good | 12/16 |
Works on a guest network Casting from a phone stops working across a guest network. | Poor | 5/8 |
Survives a plug-in extender Works, but halves the speed available for 4K. | Usually fine | 5/8 |
Doesn't depend on chatty discovery Screen sharing and soundbar pairing use local discovery messages. | Some dependency | 7/16 |
Easy to fix when it goes wrong Typing a Wi-Fi password with a remote is nobody's favourite job. | Fiddly | 5/12 |
| WiFiXpert Compatibility Score | 68/100 | |
What usually goes wrong
Buffering on 4K, or the TV drops off Wi-Fi every night.
Free things to try, in this order
- 1
Run a network cable to the TV if the router is in the same room — it beats any Wi-Fi fix.
- 2
Turn off the TV's 'quick start' power saving, which can drop the Wi-Fi overnight.
- 3
Move the router so it isn't directly behind the TV or a metal bracket.
Before you buy anything
A £5 network cable or powerline adapter before any new Wi-Fi kit.
Answers about this gadget
What it needs from your network
Wi-Fi 5 client in most sets, Wi-Fi 6 in premium models, with an aerial buried behind a large metal screen.
- Bands it uses
- Both bands, but the aerial is often poor because of the panel behind it.
- How it's found
- Needs local discovery for casting and for phone remote apps.
- Background discovery traffic
- Significant if you cast or use a phone as a remote.
- On a guest network
- Casting and phone remotes stop working.
- On a separate gadget network
- Keep TVs with the phones that cast to them.
Getting it set up
- • Use the 5 GHz name if the router is in the same or next room.
- • A cable to the TV is the single best upgrade if the router is close.
- • Stand next to your router while you set it up, then move the gadget to where it lives.
- • Put your phone on the 2.4 GHz network name for the setup, or use one name for both bands so the phone can follow.
- • If your router splits bands into two names, turn the 5 GHz one off for five minutes rather than fighting it.
- • Turn mobile data off on your phone during setup — some apps quietly use it and never find the gadget.
With mesh Wi-Fi
- • A mesh box with a spare Ethernet port near the TV lets you cable it — better than any Wi-Fi tweak.
Network notes checked September 2026.
Problem guides for this gadget
- Why won't my LG smart TV work on the guest network?
- Will televisions work properly in a flat or apartment?
- Will televisions work properly in a new build?
- Why does my LG smart TV disappear from the app?
- Is my extender breaking my LG smart TV?
- Why does my LG smart TV keep needing setting up again?
- All televisions guides
Where these ratings come from
- LG — UK support
- WiFiXpert cases and community reports for this device, checked September 2026.
What we haven't confirmed yet
- Our sources for this one aren't from the maker's own site yet.
- One of our sources points at a general help page rather than the exact article.
- We haven't yet published provider-specific notes for this device.
Nobody pays to appear in this index, and no shopping link changes a score. If a manufacturer changes something that affects a rating, tell us and we'll recheck it.