I have Optimum in Grand junction,CO. I do video uploads at least 3 times a week. I thought it was just YouTube as first that is slowing down but some other websites are to. All computer on my network have the smae problem and i have restart modems/routers plunged directly in the cable modem and so on. Another not is, when I am loading a YouTube video on my iPhone, it takes forever but s soon as WiFi is off the video is playing and loading away in seconds.