Connect Your Chromecast During Setup

When you plug in a new Chromecast for the first time, it walks you through WiFi connection on the device itself. The Chromecast will broadcast its own temporary network — look for a name like "Chromecast Setup" or "Chromecast-XXXX" in your phone's available WiFi list. Connect to it, then open a web browser and go to g.co/chromecast. The setup page will show your home WiFi networks. Select yours, enter your password, and the Chromecast will join your network. This takes about two to three minutes.

If you do not see the setup page automatically, manually type the address into your browser's address bar. Make sure your phone is still connected to the Chromecast's temporary network while you do this — once the Chromecast joins your real WiFi, you can disconnect from the temporary one.

Key Takeaways

  • A new Chromecast broadcasts a temporary setup network that you connect to from your phone, then visit g.co/chromecast to choose your home WiFi.
  • You need your WiFi password ready, and your phone must stay connected to the Chromecast's temporary network until setup is complete.
  • If setup fails, restart the Chromecast by unplugging it for 30 seconds, then plug it back in and try again.
  • Once connected, you can cast to your Chromecast from any phone or computer on the same WiFi network without re-entering the password.

Reconnect an Existing Chromecast to a Different Network

If you already set up your Chromecast but need to move it to a different WiFi network — or your network password changed — you have two options. The fastest is to use the Google Home app on your phone. Open the app, find your Chromecast device in the list, tap the settings icon (three dots), select "Forget device," then unplug the Chromecast. Plug it back in and it will broadcast its setup network again. Connect to it from your phone and go to g.co/chromecast to choose the new network.

The second option is to factory reset the Chromecast directly. Hold down the reset button on the back of the device for about 15 seconds while it is plugged in — you will see the light flash orange, then white. Release the button and wait for it to restart. It will then broadcast the setup network and you can connect it the same way as a new device.

Troubleshoot When Your Chromecast Will Not Connect

If the Chromecast does not find your WiFi network in the list, or the connection drops when ready after you enter your password, the most common cause is that your phone and the Chromecast are on different WiFi bands. Many routers broadcast both 2.4 GHz and 5 GHz networks with the same name. Chromecast devices work on 2.4 GHz only, so if your phone is on 5 GHz, the Chromecast cannot see the network you are trying to tell it to join. Log into your router settings and either disable the 5 GHz band temporarily, or give the 2.4 GHz band a different name so you can confirm which one you are connecting to.

If the Chromecast connects but then when ready disconnects, move it closer to your router. Chromecast has a shorter WiFi range than most phones and laptops. Even if your phone has a strong signal in that location, the Chromecast may not. Try plugging it in within 10 feet of the router for the initial connection, then move it to your final location once it is stable.

If you see an error message about the password being wrong, even though you know it is correct, restart your router. Unplug it for 30 seconds, plug it back in, and wait for it to fully restart before trying the Chromecast again. Also double-check that Caps Lock is not on when you type the password — WiFi passwords are case-sensitive.

Use a Guest Network Instead of Your Main Network

Some routers let you create a separate guest network with its own password. Connecting your Chromecast to a guest network instead of your main one can be useful if you have a lot of devices on your main network or if you want to limit what the Chromecast can access. The setup process is identical — the Chromecast will see the guest network in the list just like any other network, and you enter its password the same way.

The main trade-off is that some routers isolate guest networks from each other, which means devices on the guest network cannot talk to devices on your main network. If your phone is on your main network and your Chromecast is on the guest network, you may not be able to cast to it. Check your router's settings to see whether guest isolation is turned on. If it is, you have two choices: turn off guest isolation, or connect both your phone and Chromecast to the same network.

What to Do If Your WiFi Network Does Not Appear in the List

During setup, the Chromecast scans for nearby networks and shows you a list. If your network does not appear, it is usually because the router is not broadcasting the network name (SSID). Many routers have a setting to hide the network name for security reasons. If yours is hidden, you can still connect the Chromecast — look for an option in the setup page that says "Add network manually" or "Other network." Tap it and type in your network name exactly as it is spelled, then enter the password.

If you do not know whether your network is hidden, check your router's settings. Log into the router's admin page (usually 192.168.1.1 or 192.168.0.1 in your browser), find the wireless settings, and look for an option called "SSID broadcast" or "Hide network." If it is turned off or disabled, your network is hidden and you will need to use the manual entry option on the Chromecast.

Check Your Chromecast Is Actually Connected

After setup, you can verify that your Chromecast is on the network by opening the Google Home app and looking at the device list. If it shows a green dot or says "Connected," the Chromecast is on your WiFi. If it shows a red dot or says "Offline," the connection did not stick. Try unplugging the Chromecast for 30 seconds and plugging it back in. If it stays offline, go back through the connection steps — the password may have been entered incorrectly, or the Chromecast may have lost the signal before it fully saved the settings.

You can also check the Chromecast's status light. A solid white light means it is connected and ready to use. A blinking white light means it is still connecting or updating. An orange light means it is in setup mode. If the light is off, the device is not getting power — check that the USB cable is plugged in securely and that the power adapter is working.

Frequently Asked Questions

Do I need to enter the WiFi password every time I use my Chromecast?

No. Once you enter the password during setup, the Chromecast remembers it and reconnects automatically whenever it is plugged in. You only need to enter it again if you change your WiFi password, move to a different network, or factory reset the device.

Can I connect my Chromecast to a 5 GHz WiFi network?

Chromecast devices only work on 2.4 GHz networks. If your router broadcasts both bands under the same name, your Chromecast will not be able to connect to the 5 GHz portion. You can either give the 2.4 GHz band a different name so you can select it specifically, or disable 5 GHz temporarily during setup.

What if I forgot my WiFi password?

You can reset your WiFi password through your router's admin page or by calling your internet provider. Once you have the new password, use the Google Home app to forget the Chromecast, unplug it, plug it back in, and set it up again with the new password.

Can I use my Chromecast on a public WiFi network?

Some public networks require you to log in through a web page or accept terms before you can use the internet. Chromecast cannot complete this login process, so it will not work on those networks. It works best on open networks that do not require a login, or on password-protected networks like your home WiFi.

Why does my Chromecast keep disconnecting from WiFi?

The most common causes are that the Chromecast is too far from the router, the router is overloaded with too many devices, or the WiFi signal is weak in that location. Try moving the Chromecast closer to the router, restarting the router, or checking whether other devices are using a lot of bandwidth. If the problem continues, your router may need an update or replacement.