To get the most out of your viewing experience, we recommend the following tips...
Perform a SpeedTest to see how fast your internet connection is. Minimum speed to view a high definition video stream is in the 5-7 Mbps range. The more the better and you will have fewer interruptions or 'buffering' issues. Connect to a local WiFi connection if possible to save using your phone data plan and a possible faster connection to the web.
You can address streaming issues by reducing the video quality to a lower setting by clicking the bottom right 'cog' icon (desktop) or the '3-dot' icon at the top right (mobile) to change the "quality". Select a lower number and the buffering issue should go away.
If viewing on a mobile device, download the free Google Drive app to improve playback and overall experience.