(Shapingba) I am using Great Wall Broadband to answer this question for you. I installed the Great Wall 10M broadband. When watching the video, I can't watch it in the middle. I measured the speed with 360, sometimes it was 300KB/s and sometimes it was 10 m/s, but I watched the video. Whether you watch it on the web or have a class on the player, (it's not HD video). Often disconnected from the internet, call customer service at critical times, just say it's this problem and that problem, perfunctory. Playing games, sometimes it's not very card, sometimes it's card, and playing games often breaks down for no reason. (He rents bandwidth in China Telecom and China Unicom)