YouTube stops working on your TV for five main reasons: your internet connection is too slow or unstable, the app needs an update, your TV's HDMI cable is loose, YouTube's servers are down, or your TV model is no longer supported

Start by checking whether the problem is YouTube itself or your TV's connection to it. Open a web browser on your phone and visit youtube.com. If videos play smoothly there, the issue is between your TV and YouTube. If your phone also has trouble, your internet connection is the problem — restart your router by unplugging it for 30 seconds, then plug it back in and wait two minutes for it to fully restart.

If YouTube works on your phone but not your TV, move to the steps below in order. Most people find the fix in the first two sections.

Key Takeaways

  • Restart your TV completely by unplugging it for 30 seconds, not just turning it off with the remote.
  • Check the YouTube app version in your TV's app store — outdated apps are the most common cause of playback failure.
  • Restart your router by unplugging it for 30 seconds if YouTube loads but videos won't play or buffer constantly.
  • If your TV is older than seven years, YouTube may have dropped support for your model, and you may need a streaming device instead.
  • Check your HDMI cable connection if you use an external device — a loose cable often causes the TV to lose signal entirely.

Restart your TV completely, not just with the remote

Turning off your TV with the remote does not fully reset it. The app stays in memory and can get stuck. Unplug the TV from the wall outlet, wait 30 seconds, then plug it back in. Wait another 30 seconds for it to fully boot before opening YouTube again.

This single step fixes YouTube playback problems about 40 percent of the time because it clears the app's memory and forces it to reload fresh. If YouTube still will not work after this, move to the next section.

Update the YouTube app on your TV

An outdated YouTube app is the second most common cause of playback failure. The steps differ by TV brand, but the principle is the same: go to your TV's app store, find YouTube, and check whether an update is available.

On Samsung TVs, press the Home button on your remote, navigate to Apps, find YouTube, and select it. If an Update button appears, select it. On LG TVs, press the Home button, go to the LG Content Store, search for YouTube, and select Update if it appears. On Sony TVs, go to the Google Play Store (built into Sony TVs), search for YouTube, and select Update. On Roku devices, go to the Home screen, select the YouTube app, press the Options button (marked with three dots), and select Check for Updates.

After the update finishes, restart the app. If YouTube still will not play, restart your router next.

Restart your router and check your internet speed

If YouTube loads but videos buffer constantly, stall, or refuse to play, your internet connection is too slow or unstable. Unplug your router from the wall outlet, wait 30 seconds, then plug it back in. Wait two full minutes for all the lights to stop blinking before testing YouTube again.

While the router restarts, check your internet speed on your phone using a free speed test site like speedtest.net. YouTube requires at least 2.5 megabits per second (Mbps) for standard definition and 7 Mbps for high definition. If your speed is below 2.5 Mbps, move your TV closer to the router or ask your internet provider whether your plan supports streaming video. If you have multiple devices using the internet at the same time (someone streaming on another TV, downloading files, or video calling), pause those activities and test YouTube again.

Check your HDMI cable if you use a streaming device

If you watch YouTube through a Roku, Apple TV, Fire Stick, or Chromecast, the HDMI cable connecting the device to your TV may be loose. Unplug the HDMI cable from both the back of your TV and the streaming device, wait five seconds, then plug it firmly back in. The cable should click into place. If the cable is damaged (bent pins, frayed wires, or visible cracks), replace it with a new one — HDMI cables cost between $5 and $15.

After reseating the cable, restart the streaming device by unplugging it for 30 seconds, then plugging it back in. If YouTube still will not work, the device itself may need an update — check your device's settings menu for a software update option.

Check whether your TV model is still supported

YouTube regularly stops supporting older TV models. If your TV is more than seven years old and you have completed all the steps above, YouTube may no longer work on it. Check your TV's manual or the manufacturer's website to confirm the model year and whether YouTube is listed as a supported app.

If your TV is no longer supported, you have two options: use a streaming device like a Roku, Apple TV, Fire Stick, or Chromecast (which plug into your TV's HDMI port and cost between $25 and $100), or cast YouTube from your phone to your TV if your TV supports Chromecast or AirPlay. To cast from your phone, open YouTube, tap the cast icon (it looks like a rectangle with a WiFi symbol), and select your TV from the list.

Check YouTube's server status if nothing else works

Occasionally YouTube's servers go down, and no TV in the world can access it. Check whether YouTube is down by visiting downdetector.com on your phone, searching for YouTube, and looking at the outage map. If the map shows red areas in your region, YouTube is experiencing an outage and you will need to wait for it to come back online — this usually takes between 15 minutes and two hours.

If the outage map shows no problems in your area and you have completed all the steps above, the issue may be specific to your TV model or internet provider. Contact your TV manufacturer's support line with the model number (usually found on a sticker on the back of the TV) and describe the exact error message you see, if any.

Frequently Asked Questions

Why does YouTube load but videos won't play?

Your internet connection is too slow or unstable. Restart your router, check your speed at speedtest.net (you need at least 2.5 Mbps), and pause any other devices using the internet. If the speed is below 2.5 Mbps, move your TV closer to the router or contact your internet provider about upgrading your plan.

What does it mean if YouTube shows an error code?

Error codes tell you what went wrong. Write down the exact code and search for it on YouTube's help center (support.google.com/youtube). Different codes mean different things — some are temporary connection problems, others mean the app needs an update, and some mean your TV model is no longer supported.

Can I use YouTube on a TV that's too old?

If your TV is older than seven years and YouTube no longer works, use a streaming device instead. Roku, Apple TV, Fire Stick, and Chromecast all plug into your TV's HDMI port and cost between $25 and $100. They will work on almost any TV made in the last 15 years.

Why does YouTube work on my phone but not my TV?

Your TV's app is outdated, your TV needs a restart, or your internet connection is too slow for video streaming on that device. Start by updating the YouTube app on your TV, then restart your TV by unplugging it for 30 seconds. If videos still buffer, restart your router and check your internet speed.

How do I know if it's my internet or my TV?

Open YouTube on your phone using the same WiFi network. If videos play smoothly on your phone, the problem is your TV or the app. If your phone also buffers or fails to load, your internet connection is too slow — restart your router and check your speed at speedtest.net.