Make a timeout for tcpReception

Question

Hello, I work on an windows universal app project and I receive data from a server but when I use the await LoadAsync method and all the data has been received the method enters in an infinite loop ,so I want to make a timeout, to do this I use a cancellationTokenSource but when the timeOut occur it close the socket, is it normal ?

 CancellationTokenSource cts = new CancellationTokenSource();
 try
       {
   cts.CancelAfter(2000);
  await reader.LoadAsync(sizeof(UInt16)).AsTask(cts.Token);
  cts.Cancel();
                                            
          }
         catch (TaskCanceledException a){
        Debug.WriteLine("error");        

     }