I tried playing these videos and get the screen you see below.

The Directx install is fine and the internet connection is good. If I download the media then the videos work fine.
I had this problem when I switched from Win 7 to Win 8.1. That was a permissions issue in the windows firewall. That is not the problem this time.
The Mobile Ed and QuickStart videos work fine. From what I can tell the problem is with this resource.