Here is what I could find.
You should check your ISPs heatmap for outages - http://downdetector.com/status/ and select your provider. For privacy issues, I did not paste the full URL, but I could see that with your provider, there is a relatively big red area in your region.
Also - you can try and see adding string " &speedtest=1 " to the video download URL, which will measure pure network performance from users location, and this would help us determine any issues
Hope these made sense! Let me know