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 Chromecast: Unplug the Chromecast from the power source, wait a few seconds, and plug it back in.

B. 3. Update the Chromecast firmware: Use the Google Home app to check for updates for your Chromecast.