When changing channel the screen goes black and returns to original channel, while watching a recording if I try to fast forward the progress bar at the bottom of the screen keeps jumping backwards. On my sky mini box I am getting the message no satellite signal. When I look at the settings on my main box and look at network connection the network name has changed to a Sky network and my broadband provider is BT I have changed it back to BT but it changes itself back to Sky.
