This weekend I finally jumped on the 4K bandwagon after waiting for it to mature a little and got a Sony XBR 4K HDR. The picture is amazing and the 4K HDR is amazing. However when I'm watching a 4k stream on either Netflix or Amazon Prime I've noticed that the rest of my devices come to a crawl. Im on a FiOS 100/100 plan so I figured that would be plenty for a single 4K stream and some web browsing. While streaming my connection goes from 100 down to around 1.5 or less with a 111+ ms ping time. I don't know if this is being caused by the router (AC Time Capsule) getting overwhelmed or the FiOS router (g1100) doing the same. Any suggestions as to the cause?