Reviewed September 2026
LG smart TV + TP-Link Deco mesh
Known to be awkward — worth setting up carefully
Independent WiFiXpert score. No sponsorship, no shopping link, no manufacturer input.
This is one of the pairings people write to us about. Nothing is broken — the TP-Link Deco mesh's defaults and the way a LG smart TV finds the network simply don't suit each other until you change a setting or two.
Known issues with this pair
- • LG smart TV relies on constant background "who's here?" messages, and TP-Link Deco mesh filters some of that traffic by default.
- • Do not put LG smart TV on TP-Link Deco mesh's guest or IoT network — devices there are kept apart on purpose.
- • LG smart TV can struggle with today's stricter Wi-Fi security settings.
What it looks like when it goes wrong
- The gadget is online, but the phone app says it can't be found.
- Set-up finishes, then the app immediately loses the gadget.
- The gadget says the password is wrong even though it is right.
Do these, in this order
- 1
Turn on the multicast / mDNS forwarding option, and make sure your phone is on the same Wi-Fi name.
- 2
Put the gadget on the main Wi-Fi name and forget the guest network on your phone.
- 3
Set the network security to the mixed WPA2/WPA3 option rather than WPA3 only.
- 4
Run a network cable to the TV if the router is in the same room — it beats any Wi-Fi fix.
- 5
Turn off the TV's 'quick start' power saving, which can drop the Wi-Fi overnight.
Settings we'd recommend on the TP-Link Deco mesh
- • Put the gadget and your phone on the main Wi-Fi name, not the IoT or guest network.
- • In the Deco app, leave 'Smart Connect' on but turn 'Fast Roaming' off if a device keeps dropping.
Good to know about this router: Deco's IoT and guest networks are separate from the main one, and smart-home kit put on them often can't be seen by your phone. Some Deco models trim the background chatter that speakers and printers rely on.
If none of that works
- If the gadget only ever sits in one spot, a wired connection is always the most reliable answer.
What owners tell us
No confirmed reports for this pair yet. Yours would be the first.
Reports are counted together and checked by a reviewer before they change anything we publish. One report on its own never becomes an official WiFiXpert conclusion.
Sign in free to add your own reportWhere this comes from
- LG — UK support
- WiFiXpert cases and moderated owner reports for this pair, reviewed September 2026.