The Basic Connection Steps

To connect to Chromecast, you need three things: a Chromecast device plugged into your TV, a phone or computer on the same Wi-Fi network, and an app that supports casting. The actual connection happens in seconds—you open a compatible app, tap the cast icon (it looks like a rectangle with curved lines in the corner), select your Chromecast device from the list, and the content streams to your TV.

The device you're casting from stays connected to your Wi-Fi the entire time. Your phone or computer doesn't need to stay on the same screen—you can lock your phone, switch apps, or close your laptop and the video keeps playing on the TV. Only the Chromecast device and your TV need to stay powered on.

Key Takeaways

  • Your Chromecast, phone or computer, and TV must all be connected to the same Wi-Fi network before you can cast.
  • The cast icon appears inside apps like YouTube, Netflix, and Google Photos—not on your home screen—so you cast from within the app you're using.
  • After you tap cast and select your device, your phone or computer can be locked or put away without interrupting playback.
  • If you don't see your Chromecast in the device list, restart both the Chromecast and your phone or computer, then try again.

Setting Up Your Chromecast for the First Time

Before you can cast anything, your Chromecast needs to be set up and connected to your Wi-Fi. Plug the Chromecast into an HDMI port on your TV and plug the power cable into an outlet. Turn on your TV and switch to the HDMI input where you plugged in the Chromecast.

On your phone or computer, read the Google Home app (available on iPhone, Android, and as a web app). Open the app and tap the plus icon to add a device. Select "Set up device" and choose "Set up a new device." The app will guide you through connecting the Chromecast to your Wi-Fi network. You'll need to enter your Wi-Fi password, and the Chromecast will remember it for future use.

Once setup is complete, your Chromecast will appear in the Google Home app with a name like "Living Room" or "Bedroom." You can rename it to something more specific if you have multiple Chromecasts in your home.

Casting from Your Phone or Tablet

Open any app that supports casting—YouTube, Netflix, Spotify, Google Photos, and many others display the cast icon when you're playing content. The icon is small and usually appears in the top right or bottom right corner of the app. On YouTube, it's in the top right. On Netflix, it's in the top left. The exact location varies by app, but it always looks the same: a rectangle with curved lines.

Tap the cast icon and a list of available devices appears. Select your Chromecast by name. The content will start playing on your TV within a few seconds. You can now adjust volume using your TV remote or your phone, pause and play from either device, and lock your phone without stopping playback.

To stop casting, tap the cast icon again and select "Stop casting." The content will stop on your TV, but it will keep playing on your phone if you want to continue there.

Casting from Your Computer or Laptop

On a Windows or Mac computer, you can cast from Google Chrome browser or from certain apps. To cast from Chrome, click the three-dot menu in the top right corner, select "Cast," and choose your Chromecast device from the list. You can cast an entire tab, a window, or your entire screen—select which option you want before confirming.

Casting a tab sends only that browser window to your TV. Casting your entire screen sends everything on your computer to the TV, including notifications and other open windows. Most people cast a single tab to avoid accidentally showing private information on the big screen.

Some apps like Google Photos and Spotify have their own cast buttons built in. Look for the cast icon within the app itself before using the Chrome menu option.

Troubleshooting Connection Problems

If your device doesn't appear in the cast list, the most common cause is that your phone or computer is on a different Wi-Fi network than your Chromecast. Check your phone's Wi-Fi settings and make sure you're connected to the same network name (SSID) as your Chromecast. Your Chromecast's network name appears in the Google Home app under the device settings.

If you're on the correct network and still don't see your Chromecast, restart both devices. Unplug the Chromecast for 10 seconds, plug it back in, and wait for the light to stop blinking. On your phone or computer, turn Wi-Fi off and back on. Then open the casting app again and look for your device.

If the cast icon doesn't appear in an app you're using, that app may not support casting. Check the app's help section or try a different app like YouTube to confirm your Chromecast is working. Some older apps and less common services don't have casting built in.

Using Guest Mode and Multiple Users

Guest Mode lets people cast to your Chromecast without being connected to your Wi-Fi network. Open the Google Home app, select your Chromecast, tap the settings icon, and turn on "Guest Mode." When enabled, anyone nearby can cast to your TV by selecting your device and entering a four-digit code that appears on the screen.

If you have multiple people in your home with their own Google accounts, each person can cast from their own device. The Chromecast doesn't care which phone or computer is sending the content—it just plays whatever is sent to it. You don't need to switch accounts or log in differently.

Casting Audio Only

Some apps let you cast audio without video. Spotify, Google Play Music, and YouTube Music all support audio-only casting. When you tap the cast icon in these apps, your Chromecast will play the music through your TV's speakers or through a connected speaker system.

This is useful if you want to play music throughout your home without turning on the TV. The Chromecast will display the album art and song information on your TV screen while the audio plays, or you can turn off the TV entirely and just use the audio.

Frequently Asked Questions

Do I need to be on Wi-Fi to cast to Chromecast?

Yes, both your casting device and your Chromecast must be on the same Wi-Fi network. If you're on a mobile data connection, you won't be able to cast. Switch to Wi-Fi first, then try casting again.

Can I cast from an iPhone to Chromecast?

Yes. iPhone supports casting through apps like YouTube, Netflix, Spotify, and Google Photos. The process is the same as on Android—tap the cast icon and select your device. Some apps may have limited casting support on iPhone compared to Android.

What happens if I close the app while casting?

If you close the app completely, casting usually stops. However, if you just lock your phone or switch to a different app, casting continues. The behavior depends on the specific app—some apps pause when you switch away, while others keep playing.

Can multiple people cast at the same time?

No. Only one device can cast to a Chromecast at a time. If someone else tries to cast while you're already casting, their content will replace yours on the TV. You'll see a notification on your phone that casting has stopped.

Why is my Chromecast not showing up even though it's plugged in?

The most common reason is that your phone or computer is on a different Wi-Fi network. Check your Wi-Fi settings and connect to the same network as your Chromecast. If you're on the correct network, restart both devices and try again. If the Chromecast's light is off, make sure the power cable is fully plugged in.