title: AVPlayer stops playing and doesn't resume again
body: <p>In my application I have to play audio files stored on a web server. I'm using <code>AVPlayer</code> for it. I have all the play/pause controls and all delegates and observers there which work perfectly fine. On playing small audio files everything works great. </p>
  
  <p>When a long audio file is played it also starts playing fine but after some seconds the <code>AVPlayer</code> pauses the playing (most probably to buffer it). The issue is it doesn't resume on its own again. It keeps in a pause state and if I manually press the play button again it plays smoothly again. </p>
  
  <p>I want to know why <code>AVPlayer</code> doesn't resume automatically and how can I manage to resume the audio again without user pressing the play button again? Thanks.</p>