A. 1. Ensure both devices are on the same Wi-Fi network: Check that your phone and Chromecast are connected to the same network. 2. Restart both devices: Unplug your Chromecast, wait for 30 seconds, and plug it back in. Restart your phone as well.
B. 3. Update the Google Home app: Ensure that the Google Home app is updated to the latest version, as this can resolve connectivity issues.