I use my fiber internet to my Roku, usually running 300-500 mbs. Roku to HDTV via a very short HDMI cable. All season, our sound and video were excellent with absolutely no drops or lags. Finals night, I kept getting a "Something has gone wrong" message and could only reconnect by hitting the Home button on my Roku remote and re-enter the Roku app from scratch. I finally gave up during SCV and went to my new laptop via the Flo internet site. No issues after that.