So recently I have been experiencing a lot of buffering on youtube at 1080p even 480p and I will go and check my internet speed and it says its at 15mb and 18mb when I check it and I am only able to play hd videos in IE. Any ideas on what causing this? All other websites like twitch are perfectly fine it only appears to be youtube. I've already did the hardware acceleration thing where you go into the settings and uncheck it.