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(11 Fixes) Samsung TV Chromecast Not Working [2023]

Samsung TV Chromecast Not Working

Imagine this:

Your favorite show has released a new episode. 

And as soon as you’ve heard the news…

You turned on your Samsung TV and readied your smartphone to connect with Chromecast.

But once you’ve clicked the cast icon on the streaming app, your TV screen displayed “No Signal.”

Uh-oh! What should you do?

Read on to know:

  • How to reset a Chromecast to resolve connectivity errors.
  • 11 ways to fix a Samsung TV Chromecast that isn’t working.
  • How to set up a Chromecast in the Google Home app for streaming.
  • And a lot more…

Why is my Samsung TV Chromecast not working?

Your Samsung TV Chromecast isn’t working because the device isn’t set up in the Google Home app yet. And the TV input source isn’t set to “HDMI.” It’ll also not work if the cables and ports are faulty, and the WiFI is slow or disconnected. Or if the devices are lagging, malfunctioning, or outdated.

Samsung TV Chromecast not working: 11 fixes

#1: Set up Chromecast in the Google Home app

Is it your first time using a Chromecast on your Samsung TV?

If yes, you have to set it up first in the Google Home app. Otherwise, you won’t be able to use it for casting.

Note: You don’t need to open the Google Home app whenever you’d like to use Chromecast. You’d only need it for the initial setup.

Here’s how to set up a Chromecast:

Step 1: Plug in your Chromecast to your Samsung TV. Make sure that your TV is powered ON. Plus, change the TV’s input source to “HDMI.”

Step 2: Download the Google Home app on your Android or iOS device.

Step 3: Sign in to your desired Google account.

Step 4: Create or choose a “Home” for your device.

Step 5: Allow the Google Home app to access your location.

Step 6: Tap “Chromecast” when asked what device you’re setting up.

Step 7: Wait for the app to detect your Chromecast. Then, follow the on-screen instructions to confirm your device.

Step 8: Connect your Chromecast to the same WiFi network with your mobile device.

And now, you can stream from your mobile device to your Samsung TV using Chromecast!

Check out: Can a Chromecast Work on Multiple Wi-Fi Networks? The Truth

#2: Change the TV’s input source

When plugging a Chromecast into your Samsung TV…

You must change your TV’s input source. Or else your TV won’t detect your Chromecast. 

Here’s how to do it:

Note: You’d need your Samsung TV remote for this.

  1. On the remote, press “SOURCE.”
  2. Then, select “HDMI.”

Suppose the SOURCE button on your Samsung TV remote isn’t working.

Follow this second method:

Step 1: Press “HOME” on the remote. Look for the house icon.

Step 2: Use the LEFT navigation button until you reach “SOURCE.”

Step 3: Use the UP navigation button to enter the source settings.

Step 4: Then, use the RIGHT navigation button to select “HDMI.”

Or you can watch this video for visual instructions on how to do it:

#3: Insert Chromecast into another HDMI port

Your Chromecast will fail to work if inserted into a faulty HDMI port.

Here are some obvious signs that your TV HDMI port is faulty:

  • Your Chromecast feels loose when inserted.
  • You can’t easily insert or remove your device.
  • Your Chromecast doesn’t light up when plugged.

Suppose you experience any of these. Plug your Chromecast into another HDMI port.

In general, Samsung TVs have 2 to 3 HDMI ports. 

Look for these extra ports, and insert your Chromecast into it. 

If your device works, then your previous port is definitely defective. I suggest you call a technician to repair your HDMI port.

Reading recommendation: Samsung TV Not Recognizing HDMI Input: 11 Fixes

#4: Plug Chromecast into a different outlet or USB port

If the solution above didn’t work, try plugging your Chromecast into a different outlet.

Or a USB port if you power your device using your TV.


Because it’s also possible that the outlet or USB port you’re using to power your device is faulty.

If you think that your TV USB port is faulty…

You have no other choice but to shift into plugging your Chromecast directly into a power source. Since Samsung TVs only have one available USB port per unit.

And if the power outlet you’re using is defective…

Plug your Chromecast power adapter into a different wall socket. 

Note: You may use an extension wire to plug your device. But make sure not to overload it with other devices.

#5: Try another cable

Okay, I guess plugging your Chromecast into another HDMI port and power outlet didn’t work.

This time, try changing the cables you’re using. And that includes the following:

  • Power adapter.
  • USB power cable (power cord).
  • HDMI extender (if you’re using one).

When getting a replacement, make sure to get one that’s compatible with your device. And if you can, buy directly from Google.

If buying a power cord replacement, choose a micro-USB type cable

And if you want to avoid the hassle of plugging your device into an outlet…

Get a power cable with special circuitry

That way, you can ensure that your Chromecast will stay powered ON.

#6: Power cycle the WiFi router

If troubleshooting your Chromecast connection resolves nothing…

Consider checking your WiFi network.

Visit and test your WiFi network. 

If your internet speed is lower than it should be, power cycle your WiFi router.

Doing this helps resolve electronic glitches on your router. That may be causing your internet to slow down or cut off.

To power cycle a WiFi router:

Note: This works for any router brand and model.

Step 1: Make sure that the router is powered ON. 

Step 2: Remove its power cord from the outlet.

Step 3: Keep it unplugged for at least 30 seconds.

Step 4: Replug the power cord to the outlet. And press its POWER button to turn it on.

Then, just wait for it to restart and reconnect with your devices.

#7: Disconnect other devices from the WiFi

Still didn’t work?

Then, disconnect other devices that are connected to the same WiFi network.

The reason:

Connecting too many devices to the same WiFi network can cause network congestion. 

It’s when your network carries too much data than it can handle. Causing your internet speed to slow down.

Here’s how you can disconnect devices in 2 ways:

  • By factory resetting your WiFI router.
  • By disconnecting the WIFi on every device.

Factory resetting your router is the easiest method. Since you just need to press the reset button to disconnect all devices.

Warning: It’d also disconnect your Samsung TV, Chromecast, and mobile device.

And when that happens, you’ll have to reconnect them to your WiFi again. Which can be too much work for you.

#8: Restart the mobile device

“I’ve tried fixing my WiFI connectivity already. But I still can’t use my Chromecast.”

If that’s the case, restart your mobile device. As doing so can fix most WiFi connectivity issues.

To restart an Android device:

  1. Press and hold the POWER button.
  2. Wait for the screen to display an option.
  3. Then, press “Restart.”

To restart an iOS device:

  1. Press the VOLUME UP button.
  2. Press the VOLUME DOWN button.
  3. Then, press and hold the POWER button.
  4. Continue holding until the Apple logo appears.

Note: After this, make sure to reconnect to the same WiFi network.

#9: Update the TV’s software

Update TV Software

When was the last time you updated your Samsung TV?

Having outdated software can cause your TV to malfunction. It may fail to follow commands and connect with other devices.

So, if you can’t seem to connect your Chromecast with it…

Update your Samsung TV’s software. Here’s how to do it:

  1. On the remote, press MENU.
  2. Navigate to settings.
  3. Click “Support.”
  4. Press “ Software Update.”
  5. Then, tap “Update Now.”

After that, your TV may restart once. Just wait for the screen to display the homepage again. Before reconnecting your Chromecast.

Learn more: How often do smart TVs update their software?

#10: Factory reset the Chromecast

Suppose the abovementioned solutions didn’t help, factory reset your Chromecast.

Warning: This removes all data and disconnects your device from the WiFi and Google Home app. So, make sure to try the other fixes above first.

Factory resetting your device gets it back to its default settings. And help resolve glitches and software bugs. Which may be causing the problem with your device.

Regardless of the model, here’s how to factory reset a Chromecast:

Step 1: Ensure that the device is plugged into the TV. You should see its LED light glowing white.

Step 2: Press and hold the button on the device. Depending on the model, it should be at the back or side of the device.

Doing this will make the LED light blink yellow, orange, or red.

Step 3: Release the button once the LED light turns solid white. This indicates that the Chromecast has been reset.

Note: If you have a Chromecast (1st Gen), your TV will restart after the process.

#11: Factory reset the TV

If all things fail, factory reset your Samsung TV

Doing this will help resolve any power-related and connectivity issues with your device.

Warning: This will delete all data and customization. So, do this only as your last resort.

Here’s how to do it:

  1. On the remote, press MENU.
  2. Go to settings.
  3. Click “General.”
  4. Tap “Reset.”
  5. Enter your PIN (default is 0000).
  6. Tap “Reset” again.
  7. Then, press “OK” to confirm the action.

After this, make sure to reconnect your TV to your WiFi network and Chromecast device.