title: nw_socket_write_close shutdown (15, SHUT_WR): [57] Socket is not connected
body: <p>While running my app in the background fetch, after a few fetches i receive the following error. Im using iOS 10.2.1 and Xcode Version 8.2.1
  I have enabled background fetch in capabilities. Would anyone be able to tell me why its happening? </p>
  
  <p><a href="https://i.stack.imgur.com/DRHnr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DRHnr.png" alt="enter image description here"></a></p>
  
  <p>2017-02-02 14:28:09.738682 ********* [446:57355] [] nw_socket_get_input_frames recvmsg(fd 15, 1024 bytes): [57] Socket is not connected</p>
  
  <p>2017-02-02 14:28:09.738979 *********[446:57355] [] nw_socket_write_close shutdown(15, SHUT_WR): [57] Socket is not connected</p>
  
  <p>2017-02-02 14:28:09.739172 *********[446:57355] [] nw_endpoint_flow_service_writes [6.1 216.58.193.74:443 ready socket-flow (satisfied)] Write request has 0 frame count, 0 byte count</p>
  
  <p>2017-02-02 14:28:09.739522 *********[446:64570] [] __tcp_connection_write_eof_block_invoke Write close callback received error: [89] Operation canceled</p>