How to Connect Chromecast to WiFi

Posted By: technowifi

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Connect Chromecast With Google TV to WiFi

Chromecast with Google TV (the current model with a remote and its own interface) connects to WiFi during initial setup or through the Settings menu. If you’re setting up a new Chromecast or connecting to a different network, follow these steps.

First-Time Setup

  1. Plug the Chromecast into your TV’s HDMI port and connect the USB-C power cable to the included power adapter. Use the included adapter, not your TV’s USB port – Chromecast needs more power than most TV USB ports provide.
  2. Switch your TV to the correct HDMI input.
  3. Download the Google Home app on your phone (iOS or Android) if you don’t have it already.
  4. Open the Google Home app. Tap the “+” icon, then “Set up device,” then “New device.”
  5. The app searches for nearby devices. Select your Chromecast when it appears.
  6. A code appears on both your TV and phone. Confirm they match.
  7. Select your WiFi network from the list and enter the password.
  8. The Chromecast connects and downloads any available updates. This may take a few minutes.

After setup, the Chromecast remembers your WiFi network and reconnects automatically whenever it’s powered on. You only need to repeat this process if you change your WiFi password or switch to a different network.

Contents show

Change WiFi Network on Chromecast With Google TV

If you’ve already set up your Chromecast and need to switch WiFi networks (after moving, changing routers, or updating your password), you can do it directly from the Chromecast remote without the Google Home app.

  1. Press the Home button on your Chromecast remote.
  2. Navigate to your profile icon in the top right corner.
  3. Select “Settings.”
  4. Go to “Network & Internet.”
  5. Your current WiFi network is shown. Select it and tap “Forget network.”
  6. Select your new WiFi network from the list and enter the password.

If you can’t access the Settings menu because the Chromecast is still trying to connect to an old network, use the Google Home app method described in the next section.

Change WiFi Using the Google Home App

This method works for both Chromecast with Google TV and older Chromecast models. Your phone must be connected to the same WiFi network the Chromecast is currently on (or was previously on).

  1. Open the Google Home app on your phone.
  2. Find your Chromecast in the device list and tap on it.
  3. Tap the gear icon (Settings) in the top right.
  4. Scroll down to “Device information” and tap “WiFi.”
  5. Tap “Forget this network.”
  6. The Chromecast disconnects from the old network. Go back to the Home screen in the app.
  7. The app prompts you to set up the Chromecast again. Follow the on-screen steps to connect to your new WiFi network.

Connect Older Chromecast Models (No Remote)

Older Chromecast models (2nd gen and 3rd gen – the round puck-shaped ones without a remote) are set up entirely through the Google Home app. They don’t have their own on-screen interface.

  1. Plug the Chromecast into your TV and power it up.
  2. Open the Google Home app on your phone.
  3. Tap “+” then “Set up device” then “New device.”
  4. The app detects the Chromecast. Follow the prompts to confirm the device code and select your WiFi network.

To change the WiFi network on an older Chromecast, you need to factory reset it first. Hold the button on the side of the Chromecast for about 25 seconds until the LED light blinks. After it resets, set it up again through the Google Home app with the new network.

Troubleshooting WiFi Connection Issues

If your Chromecast won’t connect to WiFi, work through these fixes in order. Each one addresses a different common cause.

Restart the Chromecast. Unplug the power cable, wait 30 seconds, and plug it back in. This clears temporary connection errors and is the fix for about half of all Chromecast WiFi problems.

Restart your router. Unplug your router, wait 30 seconds, plug it back in, and wait 2 minutes for it to fully boot. WiFi connection tables on routers can get corrupted, and a restart clears them.

Check the WiFi band. Older Chromecast models (2nd gen) only connect to 2.4 GHz networks, not 5 GHz. If your router broadcasts both on the same network name, the Chromecast might be trying to connect to the 5 GHz band and failing. Temporarily create a separate 2.4 GHz network name in your router settings and connect the Chromecast to that.

Move the Chromecast closer to the router. Chromecast has a small internal antenna and can struggle with weak WiFi signals. If your TV is far from the router, use the included HDMI extender cable to position the Chromecast away from the TV (which can cause wireless interference). A WiFi extender or mesh system improves coverage for far rooms.

Check your router’s device limit. Some routers limit the number of connected devices (often 20 to 32). If your home has many smart devices, you might be hitting the limit. Check your router’s admin panel to see connected devices and remove any you don’t recognize.

How to Cast to Chromecast After Connecting

Once your Chromecast is on WiFi, casting works from any device on the same network. Open a supported app (YouTube, Netflix, Spotify, Disney+, or hundreds of others), tap the Cast icon (a rectangle with WiFi waves in the corner), and select your Chromecast. The content plays on your TV while your phone acts as a remote control.

From a Chrome browser on your laptop, click the three-dot menu and select “Cast.” You can cast a specific tab, a file, or your entire desktop. Screen mirroring from Android phones works through the Google Home app or the Quick Settings “Cast” toggle.

Does Chromecast work with 5 GHz WiFi?

Chromecast with Google TV and Chromecast 3rd gen support both 2.4 GHz and 5 GHz WiFi. The 2nd gen Chromecast supports both as well, though some early units had reliability issues on 5 GHz. The original 1st gen Chromecast only supports 2.4 GHz. For streaming 4K content, 5 GHz is recommended because it provides higher bandwidth with less interference from other devices.

Can I connect Chromecast without the Google Home app?

No. The Google Home app is required for initial setup and WiFi changes. There’s no web-based setup option and no way to configure WiFi directly from the TV screen without the app (even on Chromecast with Google TV, the initial WiFi connection requires the app). Make sure you have the Google Home app installed on a phone or tablet before starting setup.

Why does my Chromecast keep disconnecting from WiFi?

Frequent disconnections usually point to WiFi signal strength issues, router firmware that needs updating, or power supply problems. Make sure you’re using the included power adapter (not a TV USB port). Check that your router firmware is up to date. If the Chromecast is far from the router, consider a WiFi extender or mesh system. Some routers also have an “AP Isolation” or “Client Isolation” setting that prevents devices from communicating with each other – this needs to be turned off for Chromecast to work.

See also: How to Set Up Google Home, How to Connect Google Home to WiFi, Best Mesh WiFi Routers, Best WiFi 6 Routers

Sources

Google – Set Up Chromecast | Google – Change Chromecast WiFi