Find out which half is broken
“TV won’t connect” is two different problems wearing one coat: TV-to-router, or router-to-internet. Thirty seconds tells you which.
Check another device
Does your phone load websites on the same Wi-Fi? If everything is down, it is the router or the ISP — go restart the modem and router properly (we wrote a guide for the right order) and leave the TV alone.
Ask the TV itself
Smart TVs diagnose this: Settings → Network → Network Status draws the chain and marks which link failed — TV-to-router or router-to-internet. Trust it; it saves guessing.
Cold-boot the TV
Hold the power button on the remote until the TV restarts itself (not just off-and-on), or unplug it for 60 seconds. TVs run for months without a real reboot and their network stack gets weird.
Forget and rejoin
Use the TV’s Reset Network / forget-network option, then rejoin and retype the Wi-Fi password carefully — on-screen keyboards make it easy to fat-finger, and the TV will not always say “wrong password”, it just fails.
Check the clock
Sounds absurd, works constantly: a wrong date or time breaks the security certificates every app depends on, so the TV “connects” but nothing loads. Set date and time to automatic in system settings.
When Wi-Fi shows connected and apps still fail
Two usual suspects. First, the clock (above). Second, DNS — the internet’s phone book. In the TV’s network settings find IP Settings → DNS and set it manually to 8.8.8.8 (Google’s public DNS). It is a standard fix for smart TVs whose apps spin forever on an otherwise healthy network.
If the TV connects at 6 PM and drops at 9, that is signal, not settings: TVs sit in furniture, low, often against an outside wall, and they have worse antennas than your phone. The honest fixes are a mesh node near the TV, or the gold standard — an Ethernet cable, which we can run inside the wall so it looks like it was never done.
What streaming actually needs
4K streaming wants around 25 Mbps of real, sustained speed at the TV — not at the router, at the TV. If a speed test on a phone held next to the TV shows single digits, no setting will save it; the signal is the problem. That is a ten-minute diagnosis for us and usually a one-visit fix: reposition or add a mesh node, or pull one clean Ethernet run to the media wall.
Did this guide fix it?
One tap, no sign-up — it tells us which guides to improve and shows the next reader what worked.
Bring it to the people who do this daily
No shame in it — some faults are hardware, and some setups fight back. Call or text us a photo of the setup and we will tell you in one minute whether it is a five-minute fix or worth a visit.
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More guides: Restart your router the right way · TV says No Signal · Video doorbell offline
Quick answers
Should the TV use 2.4GHz or 5GHz?
5GHz is faster but shorter-ranged; 2.4GHz reaches farther through walls but is slower and more congested. If your router broadcasts both under one name, the TV picks — sometimes badly. Trying each band separately (many routers let you split the names) is a legitimate test.
The TV connects to the neighbor's Wi-Fi list fine but not mine.
Router-side, then: check MAC filtering / access control isn't blocking new devices, and try changing the router's Wi-Fi channel. Very old TVs also lack support for newer security modes — setting the router to WPA2 compatibility usually revives them.
Ethernet or mesh — which should I add?
Ethernet wins every time it's practical: immune to interference, full speed, forever. Mesh wins on installation cost. We do both — for one TV on an accessible wall, a hidden Ethernet run is usually the cheaper of the two over its lifetime.
My TV is old and apps keep vanishing — is the network the problem?
Not always. TV makers retire apps on old sets regardless of your Wi-Fi. A $30–50 streaming stick on the newest standard revives a healthy old panel better than any network fix — honest answer, even though we'd rather sell you a new TV install.
Does the TV need internet if I have cable and a soundbar?
Only for streaming apps and firmware updates. Plenty of our installs run happily offline. But note some TVs nag or park features behind a connection — if the nagging annoys you, connect it once a quarter for updates and disconnect again.