After updating Adobe Flash Player, videos will only load for a few minutes and then stall out. I tried to uninstall and reinstall but couldn’t reinstall and had to go back to a Restore Point to get Adobe Flash Player back onto computer. Running Windows 7 (64-bit) and Adobe Flash Player 11.7.700.202 with Google Chrome. I have the same issue with Internet Explorer only it shows that I have Adobe Flash Player 11.5.502.146
Can you check out this document for support: http://helpx.adobe.com/flash-player/kb/flash-player-games-video-or.html?
Hope the above provides you the solution.