Wi-Fi & routers

Smart TV won't connect to Wi-Fi

Smart TVs often struggle with Wi-Fi because of weak signal at their location, an incompatible security setting, or outdated TV software, and usually reconnect after a restart, a password re-entry, or a firmware update.

Difficulty
Easy
Time
15–30 minutes
DIY cost
$0
Pro cost
$0–$80

Symptoms

  • TV shows 'unable to connect to network' during setup or later use
  • TV finds the network but fails during password entry or authentication
  • TV connects but apps buffer constantly or show no internet
  • Wi-Fi works fine on phones and laptops in the same room

Likely causes

  • CommonWeak Wi-Fi signal at the TV's locationTVs are often mounted far from the router with walls or a media cabinet blocking signal.
  • CommonOutdated smart TV softwareOlder TV firmware may not support current router security standards.
  • PossibleRouter set to WPA3-only or an unusual security modeMany smart TVs, especially older ones, only support WPA2.
  • PossibleSpecial characters in the Wi-Fi passwordTV remotes make it easy to mistype symbols; some older TVs also don't handle certain special characters well.
  • Less commonRouter's device limit reachedA router juggling many devices may intermittently refuse new connections.

What to do

  1. Restart the TV completely by unplugging it from power for 30 seconds, not just using the remote's power button.
  2. Move the TV's Wi-Fi setup closer to the router temporarily, or use a Wi-Fi extender near the TV if it's far away.
  3. Double check the network name and password by typing it on another device first to confirm accuracy, then carefully re-enter it on the TV.
  4. Check for a software/firmware update in the TV's settings menu, using a wired Ethernet connection temporarily if needed to download it.
  5. In the router's settings, try switching the security mode to WPA2/WPA3 mixed instead of WPA3-only.
  6. If possible, connect the TV with an Ethernet cable instead, which sidesteps Wi-Fi issues entirely.
  7. Restart the router as well, since some TVs fail to connect if the router's device table is congested.

Tools and parts

  • Ethernet cable (optional)

When to call a pro

If the TV still won't connect after a factory reset of its network settings, the manufacturer's support line can check for a known compatibility issue with your router model.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.