Google Stadia Controllers connect directly to the internet through your Wi-Fi network, which reduces lag while you play. When a Stadia Controller can’t connect to Wi-Fi, you’ll find that you either can’t play at all, or you’ll have to use a wired or Bluetooth connection which introduces additional lag depending on the device you’re using.
Stadia Controller How to Enable Bluetooth Mode
To get everything working again, you'll need to make changes to your WiFi network, use a different device to set up your controller, or possibly even replace the controller if it's broken.
If a Stadia Controller can’t connect to Wi-Fi, it’s usually due to one of the following issues:
If you’re having an issue with your Stadia Controller that prevents it from connecting to Wi-Fi, try each of the following troubleshooting tips until your controller is working again.