We got a few days ago to say the wi-fi has been upgraded on our Hub 3 so it's now more intelligent. It was fine before but has now become patchy trying to stream say All4 or Plex on our TV. It keeps pausing, picture quality breaks down, and once lost the connection completely. Tonight it is pausing every couple of minutes trying to watch something on Plex. Other people I know who have virgin have experienced similar new problems since having the 'upgrade'. Is there anything I need to do to get this upgrade working? Or is it possible to choose to stay with the old wi-fi and back out this upgrade?