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10 Tech How-To

Fix Samsung TV Not Connecting to SmartThings

Guide 10-33425 · Updated · Step by step

If your Samsung TV won’t connect to the SmartThings app, the fix usually involves checking your network, updating the TV firmware, and re-linking the device in the app. This guide walks you through the most common causes and step-by-step solutions to get your TV and phone talking again.

Why Your Samsung TV and SmartThings App Stop Connecting

SmartThings acts as a central hub for controlling your Samsung TV from your phone. The connection relies on your TV being on the same Wi-Fi network as your phone, the SmartThings app having the correct permissions, and the TV’s software being up to date. When any of these break, you’ll see errors like “Device not found” or the TV simply won’t appear in the app.

Common culprits include:

  • Phone and TV on different Wi-Fi bands (e.g., 2.4 GHz vs. 5 GHz) or different networks entirely.
  • Outdated TV firmware that has known bugs with SmartThings.
  • The TV being registered to a different Samsung account.
  • Router settings like AP isolation or firewall blocking local communication.
  • Bluetooth interference or the TV’s Bluetooth being disabled.

Before You Start: Quick Checks

  1. Confirm your phone and TV are on the same Wi-Fi network. Go to TV Settings > General > Network > Network Status to see the connected network.
  2. Restart both devices: unplug the TV for 30 seconds, and restart your phone.
  3. Make sure the SmartThings app is updated to the latest version from your app store.
  4. Check that your TV’s software is up to date: Settings > Support > Software Update > Update Now.

Step-by-Step: Reconnect Your TV in SmartThings

  1. Open the SmartThings app on your phone and tap the Devices tab.
  2. If your TV appears but shows as offline, tap it and select Edit (pencil icon) > Delete to remove it.
  3. Tap the + (Add) icon, then select Device > TV.
  4. Choose your TV model from the list. If it doesn’t appear, select Scan for nearby devices.
  5. Follow the on-screen prompts. Your TV will show a 6-digit PIN on its screen – enter it in the app.
  6. Once added, the TV should appear as online. If not, proceed to the next steps.

Fix Network Issues That Block SmartThings

Even if your TV shows a Wi-Fi connection, the network might be isolating devices. Here’s what to check:

  • Disable AP isolation (also called “Client Isolation” or “Guest Network”) on your router. This feature prevents devices from communicating with each other.
  • Check firewall settings on your router – some security suites block local traffic between devices.
  • Use the same frequency band. If your router broadcasts both 2.4 GHz and 5 GHz, ensure both phone and TV connect to the same one. You can set a separate SSID for each band in router settings.
  • Restart your router – unplug it for 10 seconds, then plug it back in. Wait for it to fully boot.

Reset the SmartThings Connection on the TV

If the app still can’t find the TV, perform a soft reset on the TV’s network settings:

  1. On your TV remote, go to Settings > General > Network > Reset Network.
  2. Enter your Wi-Fi password again and reconnect.
  3. Then go to Settings > Support > Self Diagnosis > Reset Smart Hub. This clears all Smart Hub data (including SmartThings links) and restores defaults.
  4. After reset, you’ll need to re-login to your Samsung account and re-add the TV in SmartThings.

When All Else Fails: Advanced Troubleshooting

  • Check for Samsung account conflicts – make sure the TV is logged into the same Samsung account as your phone. On TV: Settings > General > System Manager > Samsung Account.
  • Disable VPN or ad-blockers on your phone – they can interfere with local network discovery.
  • Try a different phone – if possible, install SmartThings on another phone to isolate whether the issue is TV-specific or phone-specific.
  • Contact Samsung support if the TV still won’t connect after a factory reset of the TV (Settings > General > Reset).

Frequently Asked Questions

Why does my Samsung TV show offline in SmartThings?

The TV is likely not connected to the internet or is on a different network than your phone. Check the TV’s network status, restart the TV, and ensure both devices are on the same Wi-Fi band.

Do I need a Samsung account to use SmartThings?

Yes, a Samsung account is required to link your TV to SmartThings. Both the TV and the app must be logged into the same account.

Can I control my Samsung TV without Wi-Fi using SmartThings?

SmartThings can use Bluetooth for initial setup and some basic controls, but most features (like remote control over the internet) require Wi-Fi. For local control, both devices must be on the same network.

Why does SmartThings keep asking for a PIN?

The PIN is a security measure to confirm you’re physically near the TV. If it keeps appearing, the TV and phone may be losing Bluetooth connection. Move closer to the TV and try again.

Will a factory reset fix SmartThings connection issues?

Often yes, because it clears corrupted data and resets network settings. However, you’ll need to reconfigure the TV from scratch, including re-adding it to SmartThings.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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