You need to fix your connection with youtube. I have an 75Mb/s connection and I am buffering videos at 150Kb/s... Honestly what the hell. Iam seriously debating switching service because of this crap. I hate buffering videos and the fact that i have to wait 5 minutes just to watch a 1080p video is REDICILOUS!
I am not basing my 150Kb/s off this graph I do have a internal network bandwidth monitor. It is averaging 150 from youtube. And before you say, well duh turn down the quality. I will say what the F am I paying for a 75Mb/s connection if I cant even stream 1080p then