I am using Windows10 and Chrome to do this training. I am facing buffering issues while playing videos in higher resolution. I tired switching to both Flash Player and HTML but the issue remains. I have an Internet connection with OK speed (100 Mbps) and I am not facing any buffering while using other streaming sites. It is difficult to see the videos in lesser resolution like 320 p (especially the solution videos). Let me know if there is a solution for this problem.