Flash video played yesterday but wouldn't play now

I have been watching the video from website many days now. It is day online tutorial video. All of a sudden this has stopped working. Some videos from same website still work and many would not. I have tried accessing the videos that do not work in may machine from other machines. All videos play good in other machines. This rules out some problem within website.

I am confused why the video that was playing in past is not working now. Details below.

I have checked all the settings for Adobe Flash Player. It is enabled.

Manage Add-ons >Look for shock wave flash object. This is set enabled.

Safety > Active X Filtering is unchecked as well.

OS: Window 8.1 64 bit

Browser : IE 11

Flash version : 19.0.0.245

System

Processor: Intel R Core i5 4210U CPU @ 1.72GHz 2.40 GHz.

Installed Memory Ram: 8.00GB. 7.88 GB Usable.

System Type: 64 bit operating system, x64 based processor.

pen or touch: no pen or touch input is available.

Regards,

Lokesh