ما هو الخطا في هذا الكود وما هو الحل

بسم الله الرحمن الرحيم

الى خبراء المنتدى الكريم ما نستفيده من علم يوميا من هذا المنتدى الرائع لكم فيه جزيل الشكر والاحترام وجزاكم الله خير

لدي سؤال حول مشروع تخرج قمت بتصميمه بفضل الله ثم بففضل منتداكم

ساطرح عليكم كود قمت بكتابته وتجميعه للتحكم بالبراراليل بورت عبر الشبكة باستخدام tcp

ولكن المشكلة هي ان كود السيرفر يقوم بتشغيل الامر ولكن في اجزاء من الثانية نرجو منكم الاطلاع و والرد لحل المشكلة وجزاكم الله خير

كلاينت

 public partial class Client : Form
    {
        TcpClient MyTcpClient;
        NetworkStream NS;
        StreamWriter SW;

        public Client()
        {
            InitializeComponent();      
        }
        public void connect()
        {
            try
            {
                 MyTcpClient = new TcpClient("192.168.1.106", 3000);
                 NS = MyTcpClient.GetStream();
                 SW = new StreamWriter(NS);

            }
            catch (Exception Ex)
            {
                MessageBox.Show(Ex.Message.ToString());
            }
        }

        private void disconnect()
        {
            SW.Close();
            NS.Close();
            MyTcpClient.Close();
        }

        private void ubbtton_Click(object sender, EventArgs e)
        {
            connect();
            SW.WriteLine("up");
            disconnect();
        }

        private void ubbtton_MouseUp(object sender, MouseEventArgs e)
        {
            connect();
            SW.WriteLine("stop");
            disconnect();
        }

        private void downbutton_Click(object sender, EventArgs e)
        {
            connect();
            SW.WriteLine("down");
            disconnect();
        }

        private void downbutton_MouseUp(object sender, MouseEventArgs e)
        {
            connect();
            SW.WriteLine("stop");
            disconnect();
        }

        private void rightbutton_Click(object sender, EventArgs e)
        {
            connect();
            SW.WriteLine("right");
            disconnect();
        }

        private void rightbutton_MouseUp(object sender, MouseEventArgs e)
        {
            connect();
            SW.WriteLine("stop");
            disconnect();
        }

        private void leftbutton_Click(object sender, EventArgs e)
        {
            connect();
            SW.WriteLine("left");
            disconnect();
        }

        private void leftbutton_MouseUp(object sender, MouseEventArgs e)
        {
            connect();
            SW.WriteLine("stop");
            disconnect();
        }
    }

سيرفر

public class Controls 
    {
        [DllImport("inpout32.dll", EntryPoint = "Out32")]
        public static extern void Output(int adress, int value);
        int[] Bin = new int[9];
        public Controls()
        {
        }

        public void OutLPT(int PinNumber, int Value)          //this function convert binarry to decimal, output decimal number to LPT
        {
            Bin[PinNumber] = Value;                                // put selected value in selected location in temp array

            //start convert binary to decimal
            int Num = 1;
            Bin[0] = 0;
            for (int i = 8; i > 0; i--)
            {
                if (Bin == 1)
                    Bin[0] = Bin[0] + (Num);
                Num = Num * 2;
            }
            //END convert binary to decimal

            Output(0x378, Bin[0]);  
        }
        public void stopall()
        {
           Output(0x378, 0);
        }
    }
    public partial class Server : Form
    {
        public Server()
        {
            InitializeComponent();
        }
        Controls controle = new Controls();
        TcpListener MyTcpListener;
        NetworkStream NS;
        Socket MySocket;
        StreamReader SR;
        public delegate void MethodInvoker();

        public void Listener()
        {
            MyTcpListener = new TcpListener(System.Net.IPAddress.Any,3000);
            MyTcpListener.Start();

            while (true)
            {
                MySocket = MyTcpListener.AcceptSocket();
                NS = new NetworkStream(MySocket);
                SR = new StreamReader(NS);
                //CommandList.Items.Add(SR.ReadToEnd().ToString());
                MethodInvoker invoker1 = new MethodInvoker(delegate()
                    {
                        ShowCommand(SR.ReadLine());
                    }
                );
                this.BeginInvoke(invoker1);
            }
        }

        Thread thread;
        private void Server_Load(object sender, EventArgs e)
        {
            controle.stopall();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            thread = new Thread(new System.Threading.ThreadStart(Listener));
            thread.Start();
        }

        private void Server_FormClosed(object sender, FormClosedEventArgs e)
        {
            try
            {
                MyTcpListener.Stop();
            }
            catch (Exception ex)
            { 
                MessageBox.Show(ex.Message.ToString());
            }

            try
            {
                thread.Abort();
            }
            catch (Exception ex) 
            {
                MessageBox.Show(ex.Message.ToString());
            }

        }

        private void ShowCommand(string Comm)
        {
            CommandList.Items.Add(Comm);
            switch (Comm)
            {
                case "up":
                    controle.OutLPT(1, 1);
                    controle.OutLPT(3, 1);
                    break;

                case "down":
                    controle.OutLPT(2, 1);
                    controle.OutLPT(4, 1);
                    break;
                case "left":
                    MessageBox.Show("left");
                    break;
                case "right":
                    MessageBox.Show("right");
                    break;
                case "stop":
                    controle.stopall();
                    break;

                default:
                    MessageBox.Show("Wrong Command");
                    break;

            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            MyTcpListener.Stop();
            thread.Abort();
        }
    }