The quickest way to change Chromecast WiFi

To change your Chromecast to a different WiFi network, open the Google Home app on your phone, tap the device, go to Settings, select WiFi, and choose "Change WiFi Network." Your Chromecast will then show you available networks—pick the one you want and enter the password. The whole process takes about two minutes.

This works whether you're switching to a new router, moving to a different room with a stronger signal, or connecting to a guest network instead. You don't need to reset the device or start from scratch.

Key Takeaways

  • The Google Home app is the standard way to change WiFi—you'll need it installed on a phone or tablet that's already on the network you want to switch to.
  • Your Chromecast must be powered on and connected to WiFi (even the old network) before you can change it.
  • If the Google Home app doesn't find your Chromecast, try restarting both the device and your phone's WiFi.
  • For older Chromecast models or if the app method fails, you can factory reset the device and set it up fresh on the new network.

Step-by-step: changing WiFi in the Google Home app

Start by making sure your phone or tablet is connected to the WiFi network you want your Chromecast to join. Open the Google Home app and look for your Chromecast in the list of devices—it will show its current name (usually "Living Room" or "Bedroom" unless you renamed it).

Tap the device tile, then tap the Settings icon (gear symbol) in the top right corner. Scroll down and select "WiFi." You'll see the network your Chromecast is currently on. Tap "Change WiFi Network" and wait a few seconds while the app scans for available networks.

Select the network you want to join from the list. If it doesn't appear, make sure the network is broadcasting its name (SSID). Enter the WiFi password and tap "Connect." Your Chromecast will disconnect from the old network and join the new one—this usually takes 30 seconds to a minute.

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

If you open Google Home and your Chromecast isn't listed, the app can't find it on your current network. First, make sure your phone is on the same WiFi network as the Chromecast. If your Chromecast is on an older network and you're on a new one, they won't see each other.

Restart your Chromecast by unplugging it for 10 seconds, then plugging it back in. While it's restarting, also toggle your phone's WiFi off and back on. Once both devices are ready, open Google Home again. If it still doesn't show up, try opening the app on a different phone or tablet that's on the same network as the Chromecast.

If you've tried these steps and the device still won't appear, move on to the factory reset method below.

Factory reset: starting fresh on a new network

If the Google Home app method isn't working, you can reset your Chromecast and set it up again from the beginning. Locate the small reset button on the back or bottom of your device (it's usually recessed, so you'll need a paperclip or similar tool to press it). With the Chromecast powered on, hold the reset button for about 15 seconds until the light starts flashing orange.

Once the light is flashing, the device is in setup mode. Unplug it and plug it back in. Open Google Home on your phone, tap the plus icon to add a device, and follow the on-screen prompts. When you reach the WiFi step, select your new network and enter the password. The setup will take a few minutes, but your Chromecast will be ready to use on the new network when it's done.

Changing WiFi on older Chromecast models

If you have a first-generation Chromecast or an older model that doesn't work well with the Google Home app, the reset method is usually more reliable. These older devices sometimes struggle to find the app's WiFi change option, but they respond consistently to a factory reset.

The reset button location and appearance are the same on older models—a small recessed button on the device body. Hold it for 15 seconds while powered on, then set up the device fresh using Google Home. Older Chromecast models may take slightly longer to scan for networks during setup, but the process is otherwise identical.

Troubleshooting: common problems when switching networks

If your Chromecast connects to the new network but then disconnects after a few seconds, the password you entered was likely incorrect. Go back into Settings > WiFi > Change WiFi Network and try entering the password again, paying close attention to uppercase and lowercase letters.

If the device connects but won't load content (you see a spinning circle or "can't reach server" message), the new network may have a firewall or security setting blocking Chromecast. Try temporarily disabling any VPN on your phone, or ask your network administrator (or your router's manual) whether the network blocks casting devices. Some corporate or guest networks intentionally prevent Chromecast from working.

If you're switching to a 5GHz network and the Chromecast won't connect, try switching back to the 2.4GHz band instead. Older Chromecast models don't support 5GHz, and even newer ones sometimes connect more reliably on 2.4GHz, especially if you're far from the router.

When to call for help

If you've tried both the Google Home app method and a factory reset, and your Chromecast still won't connect to the new network, contact Google Support through the Google Home app (tap your profile icon, then Help & Feedback). They can walk you through additional troubleshooting or determine whether the device has a hardware issue.

If the problem is with your WiFi network itself—devices won't connect, or the network keeps dropping—that's a router issue, not a Chromecast issue. Restart your router by unplugging it for 30 seconds, or contact your internet provider if restarting doesn't help.

Frequently Asked Questions

Do I need to unplug my Chromecast to change the WiFi?

No. Keep it plugged in and powered on while you change the network through the Google Home app. You only unplug it if you're doing a factory reset, and even then, you plug it back in right away.

Will changing WiFi erase my apps or settings?

No. Changing the network through Google Home keeps all your apps, preferences, and linked accounts intact. Only a factory reset erases everything, and you'd do that only if the app method fails.

Can I change WiFi if my Chromecast is already disconnected?

No. Your Chromecast must be powered on and connected to some WiFi network (even the old one) before you can change it through the app. If it's completely offline, use the factory reset method instead.

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

Check your router's label (usually on the bottom or back), or log into your router's admin page from a computer to view or reset the password. Your internet provider's website may also let you manage your network settings if it's their equipment.

Can I change Chromecast WiFi without the Google Home app?

Not easily. The app is the standard method. Your only alternative is a factory reset, which erases everything and requires you to set up the device from scratch on the new network.