Set up your Chromecast device (3rd gen or older)

The Google Home app walks you through the steps for Chromecast and Chromecast Ultra setup.

If you've already set up your Chromecast on a mobile device, you don't need to set it up again on a different mobile device if all devices are on the same Wi-Fi network.

Tap for an interactive guide

Important: Chromecast setup on a computer is no longer supported. To set up your Chromecast, use a mobile device.

What you need to get started

  • A Chromecast device (3rd gen or older).
  • The latest version of the Google Home app Google Home app.
  • A Google Account.
  • A display device with an HDMI input, for example, a high-definition television (HDTV).
  • Access to an available power outlet and a secure wireless network.
  • Meet the minimum Operating System (OS) requirements to run the Google Home app Google Home app.
  • An internet connection.
  • Access to a secure wireless network (make sure you have the wireless network password handy).
    • For Chromecast (1st gen), connection to a Wi-Fi 802.11 b/g/n 2.4 GHz network.
    • For Chromecast, connection to a Wi-Fi 802.11 b/g/n/ac 2.4/5 GHz network. 
    • For Chromecast Ultra, connection to a Wi-Fi 802.11 b/g/n/ac 5 GHz network.
  • A compatible phone or tablet.
  • Availability and performance of certain features, services and applications are device- and network-dependent, and might not be available in all areas. Subscription(s) may be required, and additional terms, conditions and/or charges may apply.

Set up Chromecast or Chromecast Ultra

  1. Plug in Chromecast.
  2. Download the Google Home app on your Chromecast-supported iOS device.
  3. Turn on Bluetooth. If you already have Bluetooth turned on, you can skip to the next step.
    • Note: It's recommended to turn on Bluetooth to help improve the setup process.
    • If you don't want to turn on Bluetooth for setup:
      1. Tap No Thanks.
      2. Open your phone’s “Settings” app tap Wi-Fi.
      3. Connect to the Wi-Fi network that matches your Chromecast device. Look for something like “ChromecastXXXX.b.”
  4. Open the Google Home app Google Home app.
  5. If prompted, allow the Google Home app to find and connect to devices on your local network. If you don’t get a prompt:
    1. Open your iPhone or iPad’s “Settings” app.
    2. Tap Bluetooth turn on Bluetooth.
    3. Go back to the “Settings” main page.
    4. Tap Privacy Local Network turn on Google Home app.
    5. Go back to the Google Home app Google Home app.
  6. Follow the steps to set up your device.
    1. If you don’t find the steps to set up your Chromecast:
      1. At the top left of the Google Home app home screen, tap Add   Set up device  New device.
      2. Follow the remaining steps.
  7. Setup is successful. You're all done!

Troubleshoot setup

If setup didn’t work, try the following steps:

  1. Reboot your Chromecast.
  2. Unplug your router, then plug it back in.
  3. Connect manually to your Chromecast’s service set identifier (SSID).
    1. Open your phone’s Settings app and then tap Wi-Fi and then connect to the Chromecast SSID.
    2. Open the Google Home app and try to set up your device again.
  4. Factory reset your Chromecast.
  5. Contact support.
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