My chromecast just stopped broadcasting. It has worked fine tills for about an hour ago when it started buffering. To stop that I disconnected it in the all 4 app and now nothing is being casted. If I switch the tv on I can see the normal chromecast screen, name of the device and the network name. All other devises on the network have internet connection so it doesn't seem to be that. Tried to cast from my tab s2 and one plus 3t but neither work. Any ideas?