Changing Your Chromecast's WiFi Connection

To change which WiFi network your Chromecast connects to, you need to reset it back to setup mode, then walk through the initial setup process again with your new network. This takes about five minutes and requires the Google Home app on your phone or tablet — the same app you used when you first set up the device.

The reason you have to redo setup rather than just pick a new network from a menu is that Chromecast doesn't store a list of available networks. It only remembers the one you told it to use. Once it's connected, there's no settings screen on the device itself to change it.

You'll need your phone or tablet, the Chromecast device, and the password to the new WiFi network you want to use. If you're switching to a network without a password, you can skip that step.

Key Takeaways

  • Changing WiFi networks requires resetting your Chromecast to factory settings, then running setup again with the Google Home app.
  • You can reset by holding the button on the back of the device for 15 seconds, or by using the Google Home app if you still have access to the old network.
  • After reset, your Chromecast will appear as an unconfigured device in the Google Home app, and you'll select your new network during setup.
  • The entire process takes about five minutes and doesn't require a computer — just your phone or tablet and the Google Home app.

Reset Your Chromecast Using the Physical Button

The simplest way to reset is to use the button on the back of the Chromecast itself. Locate the small recessed button on the rear of the device — you may need a straightened paperclip or similar thin object to press it, as it sits inside a small hole.

Press and hold that button for 15 seconds while the device is plugged in. The light on the front will flash orange, then white, then turn off. Once it turns off, release the button. The device is now reset and ready for setup.

Wait about 30 seconds for the Chromecast to fully restart. You'll see the light come back on. At this point, move to the setup section below.

Reset Your Chromecast Using the Google Home App

If you can't access the physical button or prefer not to use it, you can reset through the Google Home app — but only if your Chromecast is still connected to your old WiFi network and you have the app on your phone.

Open the Google Home app and find your Chromecast in the list of devices. Tap it, then tap the settings icon (the gear) in the top right corner. Scroll down and tap "Factory reset." Confirm when prompted. The device will restart and reset itself, which takes about a minute.

This method is cleaner if you have it available, because you don't need to find a paperclip or reach behind the device. However, if you've already forgotten your old network password or the device is offline, the physical button is your only option.

Set Up Your Chromecast on the New Network

Once your Chromecast has reset, open the Google Home app on your phone or tablet. The app will detect your reset device and show it as a new unconfigured Chromecast. Tap "Set up device" or the plus icon to begin.

The app will ask which room the Chromecast is in — this is just for organization in your app, so pick whatever makes sense for you. Then it will show you a list of available WiFi networks. Find and tap the network you want to use.

If the network requires a password, type it in exactly as it appears — passwords are case-sensitive, so uppercase and lowercase letters matter. The app will connect to that network and finish setup. This usually takes 30 to 60 seconds.

Verify the Connection Is Working

Once setup completes, the Google Home app will show your Chromecast as connected. To confirm it's actually working, try casting something to it — open YouTube, Netflix, or any app that supports Chromecast, and tap the cast icon. Your Chromecast should appear in the list of available devices.

If it doesn't appear, go back to the Google Home app and check that the device shows as "Connected" rather than "Offline." If it shows offline, the password may have been entered incorrectly. Tap the device, go to settings, and look for an option to change the network — some versions of the app allow this without a full reset.

If you see the device in the cast menu but casting doesn't work, try restarting both the Chromecast and your phone. Unplug the Chromecast for 10 seconds, plug it back in, and wait for it to fully restart before trying again.

Troubleshooting Connection Problems

If your Chromecast won't connect to the new network, the most common cause is an incorrect password. Double-check that you typed it correctly — look for caps lock, numbers that might look like letters, or special characters. If you're unsure of the password, check your router's settings or ask whoever manages the network.

Another common issue is that the network uses a 5 GHz band and your Chromecast only supports 2.4 GHz. Most modern routers broadcast both, but if you see your network listed twice (often with "5G" in the name), choose the one without "5G." Older Chromecast models cannot connect to 5 GHz networks at all.

If the device still won't connect after checking the password and band, try moving the Chromecast closer to the router temporarily. WiFi range issues sometimes prevent initial connection. Once it's connected, you can move it back to its normal location.

Frequently Asked Questions

Do I lose my apps and settings when I reset the Chromecast?

Yes — reset erases everything on the device and returns it to factory condition. However, Chromecast doesn't store apps or personal settings the way a phone does. Once you set it up again on the new network, it will work exactly as it did before. Any apps you cast to it (like Netflix or YouTube) are on your phone, not on the Chromecast itself.

Can I change the WiFi network without resetting?

Not through the device's own menu — Chromecast doesn't have a settings screen you can access directly. The Google Home app is the only way to change networks, and it requires a reset first. This is by design to keep the device straightforward and find.

What if I don't have the Google Home app anymore?

You'll need to read it again from the App Store or Google Play. It's free and made by Google. Once installed, sign in with the same Google account you used to set up the Chromecast originally, and you'll see your device in the app.

How long does the whole process take?

From reset to working on the new network, expect about five to ten minutes. Most of that is waiting for the device to restart and connect. The actual steps you take — pressing the button, selecting the network, typing the password — take less than two minutes.

Will my Chromecast work on a guest network?

Yes, as long as you know the password. Chromecast works on any WiFi network, including guest networks, public networks, and corporate networks that don't require login. The only requirement is that the network has internet access.