Check your connection.
We recommend a download speed of at least 10 Mbps to stream games on Stadia, and faster speeds for resolutions greater than 720p.
Google partners with Measurement Lab (M-Lab) to run this speed test. Running this test could transfer over 40 MB of data, depending on your connection speed. Mobile data charges could apply.
Tips for getting accurate results:
Use the device and network where you want to play.
Have a strong Wi-Fi or Ethernet connection.
Stop current downloads or file sharing.
Close other tabs or streaming services like videos and music.