My Netflix app on my PS4 has stopped working. Won't open at all. Error message ui-800-3. Same goes for Amazon and YouTube. My phone also can't use Youtube. In short, I am unable to stream any video on my wifi at home. This seems to be confined to my broadband wifi as I can use YouTube on my 4G and on other networks at work for example. However BT say there is nothing wrong with my connection. Download speed =70mbps. Can't find anything wrong. Tried resetting apps and router. Tried uninstalling and reinstalling. Nothing. Same message. Won't connect to Netflix servers. Please help!