No sound? Check to ensure your mute button is not off.
Choppy video? Try another browser such as Chrome, Firefox, Opera, or Edge.
Video signal cuts out? Drag your mouse to bottom right hand corner of player window. Select option "260p" - this will allow the lower bandwidth needed.
No video and sound? Refresh the page or close the application and open it again.
For technical assistance, send an emailHEREand give a brief description of your situation.