Hello,
Generally Netstream.Play.StreamNotFound error occurs while the provided video path is wrong.
Please try to download the video by accessing it directly through any of your favorite browser. If you get any error page, then you will have to double check your video url. Else, just mail to support@hdwebplayer.com.
HD Webplayer support team can help you in resolving the issue.
Thanks,
Manimaran
