TCPClient读写没有响应

Question

我遇到使用TCPClient进行读写操作的问题。我能够连接到服务器，我得到服务器第一个响应，这是一个身份验证消息。然后，我向服务器写入所需的响应，但是，我没有收到服务器的响应。问题是，我做错了什么我阻止了阅读的反应。

static void Main( string[] args )
    {
        var messages = MessageSeed();

        TcpClient client = null;
        NetworkStream stream = null;

        try
        {
            // Create a TcpClient.
            // Note, for this client to work you need to have a TcpServer 
            // connected to the same address as specified by the server, port
            // combination.
            Int32 port = xxxx;
            IPAddress address = IPAddress.Parse( "xx.xx.xx.xxx" );
            IPEndPoint server = new IPEndPoint( address, port );
            using( client = new TcpClient() )
            {
                client.Connect( server );

                using( stream = client.GetStream() )
                {
                    // Buffer to store the response bytes.
                    Byte[] data = new Byte[ 256 ];

                    // String to store the response ASCII representation.
                    String responseData = String.Empty;

                    // Read the first batch of the TcpServer response bytes.
                    Int32 bytes = stream.Read( data, 0, data.Length );
                    responseData = System.Text.Encoding.UTF8.GetString( data, 0, bytes );
                    Console.WriteLine( "Received: {0}", responseData );

                    JTimeMessage firstResposne = new JTimeMessage( responseData );

                    if( firstResposne.MessageIdentifier == "AuthChallenge" )
                    {
                        //Server connection is correct. Need to authenticate
                        string challengString = firstResposne.KVPs[ "ChallengeString" ].ToString();
                        string APIKey = "SomeAPIKey";
                        string sharedSecret = "SomeSharedSecret";
                        string challengeResponseSecrete = CreateChallengeResponse( challengString, sharedSecret );

                        Dictionary<string, string> responseKVPs = new Dictionary<string, string>();
                        responseKVPs.Add( "APIKey", APIKey );
                        responseKVPs.Add( "ResponseString", challengeResponseSecrete );

                        string responseJSON = JsonConvert.SerializeObject( responseKVPs );

                        string challengeResponse = $"DATA ChallengeResponse {responseJSON}";

                        // Translate the message into ASCII and store it as a Byte array.
                        data = new Byte[ 256 ];
                        data = System.Text.Encoding.ASCII.GetBytes( challengeResponse );

                        if( stream.CanWrite )
                            Console.Write( "writeable" );

                        // Send the message to the connected TcpServer. 
                        stream.Write( data, 0, data.Length );

                        Console.WriteLine( "Sent: {0}", challengeResponse );

                        // Buffer to store the response bytes.
                        data = new Byte[ 256 ];

                        // String to store the response ASCII representation.
                        responseData = String.Empty;

                        // Read the first batch of the TcpServer response bytes.                            
                        Int32 authResultBytes = stream.Read( data, 0, data.Length );
                        responseData = System.Text.Encoding.ASCII.GetString( data, 0, authResultBytes );
                        Console.WriteLine( "Received: {0}", responseData );
                    }
                }
            }


        }
        catch( ArgumentNullException e )
        {
            Console.WriteLine( "ArgumentNullException: {0}", e );
        }
        catch( SocketException e )
        {
            Console.WriteLine( "SocketException: {0}", e );
        }
        finally
        {
            // Close everything.
            stream.Close();
            client.Close();
        }