A smart TV that connects to Wi-Fi and then keeps dropping is usually dealing with standby behavior, weak signal, band steering, router congestion, firmware bugs, or interference. It is different from a TV that cannot see Wi-Fi at all.
These steps apply to Samsung, LG, Vizio, Roku, Fire TV, and other smart TVs and streaming devices on a home Wi-Fi network.
Does this affect you?
Use this if the TV connects at first, then disconnects during a show, after standby, or shortly after you turn it back on.
Turn off power-saving and quick-start modes
On some TVs, fast-start or aggressive optimization modes can leave network services in a bad standby state.
- Samsung: open Settings > General > Power and Energy Saving and turn off Auto Power Off if it is causing unwanted standby behavior.
- Samsung: also check Settings > Support > Device Care > Auto Optimization and disable aggressive optimization if networking restarts unexpectedly.
- LG: open Settings > All Settings > General > System > Additional Settings and turn off Quick Start+.
- Any brand: avoid unplugging the TV or using a hard power switch as your normal off method. Use the remote power button so Wi-Fi shuts down cleanly.
If drops happen mainly after the TV has been idle or asleep, this group of settings is the first place to look.
Fix distance, band steering, and interference
- Open the TV’s network settings and check Wi-Fi signal strength.
- If signal shows two bars or less, move the router closer or add a mesh node or extender near the TV.
- If the router uses one combined network name for 2.4GHz and 5GHz, split the bands if your router allows it.
- Connect the TV to 2.4GHz for longer range or 5GHz if it is close to the router and needs speed.
- Forget the Wi-Fi network on the TV, then reconnect with the password.
Entertainment centers, wall mounts, nearby electronics, and metal objects can weaken a TV’s internal Wi-Fi antenna. A small router placement change can make a large difference.
Update firmware and reset network settings
- Check for TV software updates.
- On Samsung, use Settings > Support > Software Update.
- On LG, use Settings > All Settings > General > About This TV > Check for Updates.
- On Roku and Fire TV, use the System Update screen.
- Restart the router by unplugging it for 60 seconds and waiting for it to fully reconnect.
- Use Reset Network in the TV’s network settings if drops continue.
Reset Network clears saved Wi-Fi settings on the TV only. It does not reset your router.
When to use Ethernet or change router settings
If your TV has Ethernet, a direct cable is the most reliable fix. If it does not, some models support Ethernet through USB adapters, but compatibility depends on the TV.
If multiple devices in the house drop Wi-Fi, the router is more likely than the TV. Check the router admin page for disconnect logs, update router firmware, or reduce the number of overloaded devices.
In apartments, crowded 2.4GHz channels can cause random drops. In the router settings, manually choose channel 1, 6, or 11 instead of leaving it on auto if nearby networks are interfering.
Sources
- Samsung Support – Wi-Fi connection keeps disconnecting on Smart TV (2025)
- LG Support – TV loses internet connection troubleshooting (2025)
- Roku Support – Troubleshoot Wi-Fi connection issues (2025)