When I had Windows 7 Pro with SP1 x64 and Internet Explorer 10 everything worked fine. In fact I tested Windows 7 Pro with SP1 x64 machine and Internet Explorer 11 and the same problem depicted above happens again. Obviously IE 11 causes this problem.
Please help me, I do not want to go backwards and have Windows 7 and IE 10 again but I want to be able to play my training videos normally. My computer is bussiness laptop and it is in domain environment.