The fastest way to switch Chromecast to a different WiFi network

To change the WiFi network on your Chromecast, you need to forget the current network and set it up again from the beginning. The process takes about five minutes and uses the Google Home app on your phone or tablet. You'll need to be within a few feet of the Chromecast device while you do this, and you'll need the password for the new WiFi network you want to use.

The reason you can't straightforward "switch" networks the way you would on a laptop is that Chromecast doesn't store multiple WiFi credentials. Once it's connected to a network, it stays connected to that one until you manually reset it and set it up fresh. This is a security feature—it prevents someone from remotely forcing your Chromecast onto a different network.

Key Takeaways

  • You must use the Google Home app on your phone or tablet to change Chromecast's WiFi; there is no button or menu on the device itself.
  • The process involves forgetting the old network and running the full setup again, which takes about five minutes.
  • You need to be physically near the Chromecast while you set it up, and you need the password for the new WiFi network.
  • If you forget the password to your new network, you can find it in your router's settings or contact your internet provider.

Step-by-step: changing your Chromecast's WiFi in the Google Home app

Open the Google Home app on your phone or tablet. If you don't have it, read it from the Google Play Store (Android) or the Apple App Store (iPhone and iPad). Make sure you're signed in with the same Google account you used to set up the Chromecast.

Find your Chromecast in the app—it will appear as a card with the device name and a small icon. Tap and hold on that card until a menu appears. Look for the option that says "Forget device" or "Remove device" (the exact wording varies depending on your app version). Tap it, then confirm when the app asks you to verify.

Once the device is forgotten, the Chromecast will reset itself. This takes about a minute. You'll see the Chromecast light blink or change color during this time. After it finishes resetting, you can set it up again as if it were brand new. Tap the plus icon (+) in the Google Home app to add a new device, select "Set up device," choose "New device," and follow the on-screen steps to connect it to your new WiFi network.

What to do if the Chromecast doesn't appear in the Google Home app

If your Chromecast isn't showing up in the app, the most common reason is that your phone and the Chromecast are on different WiFi networks. Make sure your phone is connected to the same network the Chromecast is currently on, then open the Google Home app and wait a few seconds for it to refresh.

If it still doesn't appear, try restarting the Google Home app. Close it completely and open it again. If the Chromecast still doesn't show up after that, restart your phone and try once more. If you've already forgotten the device and it's in the middle of resetting, wait a full two minutes before trying to set it up again—the device needs time to complete the reset cycle.

Finding your new WiFi network's password

During setup, you'll need to enter the password for the new WiFi network you want to use. If you don't remember it, you can find it in your router's settings. Open a web browser on your computer or phone and type your router's IP address (usually 192.168.1.1 or 192.168.0.1) into the address bar. Log in with your router's username and password—these are often printed on a sticker on the router itself.

Once you're logged in, look for a section called "WiFi Settings," "Wireless," or "Network." The password is usually listed there and may be called the "Pre-Shared Key" or "PSK." If you can't find it or don't remember your router login, contact your internet provider—they can tell you the password or help you reset it.

Switching Chromecast to a 5GHz network if you have one

Many modern routers broadcast both a 2.4GHz and a 5GHz WiFi network. Chromecast works on both, but 5GHz is faster and often has less interference if you live in an apartment or dense area. During setup, the Google Home app will show you a list of available networks. If you see two networks with similar names (one might say "5G" or have a different suffix), you can choose the 5GHz one.

The 5GHz network may have a shorter range than 2.4GHz, so if your Chromecast is far from the router, 2.4GHz might work better. If you're not sure which one to pick, start with 2.4GHz—it's more reliable over distance, and you can always change it later if you want to try 5GHz.

What happens to your shows and settings when you change WiFi

When you forget and reset the Chromecast, your Google account stays linked to the device. This means your saved shows, preferences, and any Chromecast-enabled apps on your phone will still work once it's back online on the new network. You won't lose any of your casting history or preferences.

The only thing that changes is the network connection itself. Once the Chromecast is set up on the new WiFi, you can cast to it from your phone or computer the same way you did before.

Troubleshooting: Chromecast won't connect to the new network

If the Chromecast gets stuck during setup or won't connect to your new network, the most reliable fix is a factory reset. Unplug the Chromecast from power for 30 seconds, then plug it back in. Wait for the light to stabilize, then try the setup process again. If it still won't connect, unplug it again and hold down the reset button (a small recessed button on the device) for about 15 seconds while it's unplugged, then plug it back in.

If the Chromecast connects to the network but then disconnects after a few minutes, the problem is usually that your router is dropping the connection. Try moving the Chromecast closer to the router, or restart your router by unplugging it for 30 seconds and plugging it back in. If you're using a 5GHz network, switch to 2.4GHz and see if the connection is more stable.

Frequently Asked Questions

Can I change the WiFi without using the Google Home app?

No. Chromecast doesn't have a built-in menu or buttons to change the network. The Google Home app is the only way to manage your Chromecast's WiFi connection. If you don't have a smartphone or tablet, you can borrow one temporarily to do the setup.

Will changing the WiFi erase my Google account from the Chromecast?

No. Your Google account remains linked to the device. When you set it up on the new network, it will automatically reconnect to your account and restore your preferences and casting history.

How long does it take to change the WiFi?

The entire process usually takes about five minutes. The Chromecast itself takes about one minute to reset after you forget it, and then another two to three minutes to connect to the new network during setup.

What if I don't know my new WiFi password?

Contact your internet provider or check the router itself—the password is often printed on a sticker on the back or bottom. You can also log into your router's settings through a web browser to view or change the password.

Can I set up Chromecast on a guest WiFi network?

Yes, Chromecast can connect to a guest network just like any other WiFi network. However, some guest networks have restrictions that may prevent casting from working properly. If casting doesn't work on the guest network, try connecting to the main network instead.