Change the Wi-Fi network of Chromecast or Chromecast Audio
. Make sure that your mobile device or tablet is connected to the same Wi-Fi as your Chromecast or Chromecast Audio.
. Open the Google Home app .
. Tap on your device Settings .
. In the Device settings menu, scroll down to Wi-Fi, then tap Forget Forget Network.
. Follow the setup steps to set up your device on a new network.

Chromecast Set Up
Chromecast Setup Laptop