Yup. I've got 100/100 Mbps and the hidden stats were confirming that the network wasn't the problem. I even tried pausing it and letting it buffer for a long ti

Yup. I've got 100/100 Mbps and the hidden stats were confirming that the network wasn't the problem. I even tried pausing it and letting it buffer for a long time, but it just started dropping frames and going out of sync as soon as it switched to HD. It would also have paused the video and displayed "buffering" if that were the problem.