Change Your Chromecast's WiFi in the Google Home App

The fastest way to change your Chromecast's WiFi network is through the Google Home app on your phone or tablet. Open the app, find your Chromecast device in the list, tap the settings icon (three dots or a gear), scroll down to "WiFi", and select "Forget This Network". Your Chromecast will then ask you to choose a new WiFi network and enter the password. The whole process takes about two minutes.

If you have multiple Chromecast devices, the app shows each one separately, so you can change them one at a time. The device will restart once it connects to the new network, and you'll see a confirmation message in the app when it's done.

Key Takeaways

  • The Google Home app is the standard way to change WiFi — open it, find your device, tap settings, and select "Forget This Network".
  • You need the WiFi password for the new network before you start, and the Chromecast must be powered on and currently connected to WiFi.
  • If the Google Home app doesn't show your device, make sure your phone is on the same WiFi network as the Chromecast, or use the factory reset method instead.
  • A factory reset erases all settings and returns the device to its original state, which forces you to set up the WiFi connection from scratch.

What You Need Before You Start

Have the WiFi network name (SSID) and password for the new network ready. If you don't know your WiFi password, check your router's label or log into your router's admin page through a web browser on your computer.

Your Chromecast must be powered on and currently connected to a WiFi network for the app method to work. If it's not connected to any network, you'll need to use the factory reset method instead, which is described below.

Using Google Home App on Android or iPhone

Open the Google Home app and look for your Chromecast in the device list. Tap and hold the device tile, or tap the settings icon (usually three dots in the corner). Scroll down until you see "WiFi" or "Network Settings". Tap "Forget This Network" or "Change WiFi".

The Chromecast will disconnect from the current network and show you a list of available WiFi networks. Select your new network from the list, enter the password, and tap "Connect". The device will restart and reconnect. You'll see a checkmark or confirmation message when it's successful.

If your new network doesn't appear in the list, make sure the router is powered on and broadcasting its name. Some routers have a setting to hide the network name — if yours does, you may need to enter the network name manually in the app instead of selecting it from the list.

Factory Reset Method for Devices Not in Google Home

If your Chromecast doesn't show up in the Google Home app, or if it's not connected to any network at all, you can reset it to factory settings. Locate the small reset button on the device itself — on most Chromecast models, it's a recessed button on the back or bottom. Use a paperclip or the tip of a pen to press and hold it for about 10 to 15 seconds while the device is powered on.

The LED light will blink and change color, usually turning orange or white. Once the light stops blinking and returns to a steady color, the reset is complete. The device will restart and return to its original setup state, as if it just came out of the box.

After the reset, open the Google Home app on your phone. The app will detect the Chromecast and walk you through the setup process, including choosing your new WiFi network and entering the password. This method takes longer than the standard WiFi change but works when the app can't find the device.

Troubleshooting Connection Problems

If the Chromecast connects to the new network but then disconnects after a few minutes, the password may be incorrect. Go back into the app, forget the network, and try entering the password again. Passwords are case-sensitive, so check for capital letters and special characters.

If the device won't connect at all, move the Chromecast closer to the router temporarily. Walls, distance, and interference from other devices can weaken the signal. Once it connects, you can move it back to its normal location. If it still won't stay connected, restart both the Chromecast and your router by unplugging them for 30 seconds, then plugging them back in.

Some routers use separate names for 2.4 GHz and 5 GHz bands. Chromecast devices work on both, but if your router combines them under one name, try connecting to the 2.4 GHz band instead — it has longer range and is more stable for streaming devices, even though it's slightly slower.

Switching Between Multiple WiFi Networks

If you move your Chromecast between locations — for example, from home to a cabin or a second residence — you can change the WiFi network each time using the Google Home app. The device will remember the last network it connected to, so when you return to a location, it may reconnect automatically if that network is available.

You can also set up the same Chromecast on multiple networks by repeating the "Forget This Network" and reconnect process. However, the device can only be connected to one network at a time. If you want to use the same Chromecast in two different locations regularly, you'll need to change the WiFi each time you move it.

Frequently Asked Questions

Do I lose my apps or settings when I change the WiFi?

No. Changing the WiFi network through the Google Home app keeps all your apps, preferences, and linked accounts intact. Only the factory reset method erases everything and returns the device to its original state.

What if I forgot my WiFi password?

Check the label on the bottom or back of your router — many routers print the default password there. If that doesn't work, log into your router's admin page from a computer by typing the router's IP address (usually 192.168.1.1) into a web browser. You can then view or reset the WiFi password from there.

Can I change the WiFi without the Google Home app?

Not directly. The app is the standard method. Your only alternative is a factory reset, which erases all settings and forces you to set up the WiFi from scratch using the app during the initial setup process.

How long does it take for the Chromecast to connect to the new network?

Usually 30 seconds to two minutes. The device will restart once during the process. If it takes longer than five minutes, the password may be wrong, or the signal may be too weak — try moving the device closer to the router.

Will changing the WiFi affect my ability to cast from my phone?

No. Once the Chromecast is connected to the new network, casting works the same way. Your phone just needs to be on the same WiFi network as the Chromecast to cast to it.