Socket通訊System.IO Exception: Unable to read data from the transport connection: 遠端主機已強制關閉一個現存的連線。. ---> System.Net.Sockets.SocketException: 遠端主機已強制關閉一個現存的連線。 at System.Net.Sockets.Socket.BeginReceive(Byte[] buffer, Int32 offset, Int32 size, Soc