help me to fix it C# chat server and client two way p2p

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace UDP_Client
{
    class Program
    {
        static void Main(string[] args)
        {
            int recv2;
            byte[] data = new byte[30];
            byte[] data2 = new byte[1024];
            string input, stringData;
           
            IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9050);
            Socket server = new Socket(AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp);
            Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
           
            string helo = "Connected";
            //newsock.Bind(ipep);

            data = Encoding.ASCII.GetBytes(helo);
            server.SendTo(data, data.Length, SocketFlags.None, ipep);
            
            IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
            EndPoint tmpRemote = (EndPoint)sender;
            

            data = new byte[30];
            int recv = server.ReceiveFrom(data, ref tmpRemote);
            //recv2 = newsock.ReceiveFrom(data, ref tmpRemote);
            Console.Write("Pesan diterima dari IPAddress {0}:",tmpRemote.ToString());
            Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));


            int i = 30;
            while (true)
            {
                Console.Write("Pesan Saya : ");
                input = Console.ReadLine();
                if (input == "exit")
                break;
                server.SendTo(Encoding.ASCII.GetBytes(input), tmpRemote); //masuk keserver
                data2 = new byte[i];
                try
                {

                    string pesanDariServer = Encoding.ASCII.GetString(data, 0, recv);
                    data2 = Encoding.ASCII.GetBytes(pesanDariServer);
                    newsock.SendTo(data, data.Length, SocketFlags.None, tmpRemote);

                    recv2 = server.ReceiveFrom(data, ref tmpRemote);
                    stringData = Encoding.ASCII.GetString(data2, 0, recv2);
                    Console.WriteLine("Terkirim ==>> "+stringData);
                }
                catch (SocketException)
                {
                    Console.WriteLine("Perhatian: terjadi kehilangan data");
                    i = i+20;
                }
                
            }
            Console.ReadLine();
            Console.WriteLine("STOP...");
            server.Close();
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace UDP_Server
{
    class Program
    {
        static void Main(string[] args)
        {
            int recv, recv2;

            byte[] data = new byte[1024];
            byte[] data2 = new byte[1024];
            string input2, stringData2;

            IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 9050);
            Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

            newsock.Bind(ipep);
            Console.WriteLine("Menunggu Koneksi Client...");
                        
            IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
            EndPoint tmpRemote = (EndPoint)(sender);
            recv = newsock.ReceiveFrom(data, ref tmpRemote);

            Console.Write("Pesan diterima dari : {0}:", tmpRemote.ToString());
            Console.WriteLine("===>>" + Encoding.ASCII.GetString(data, 0, recv));

            string welcome = "Anda Tersambung dengan Server";
            data2 = Encoding.ASCII.GetBytes(welcome);
            server.SendTo(data2, data2.Length, SocketFlags.None, tmpRemote);

            

            int i2 = 30;
            while (true)
            {
                //data2 = new byte[1024];
                //recv2 = newsock.ReceiveFrom(data, ref tmpRemote);
                //Console.WriteLine("==>> " + Encoding.ASCII.GetString(data, 0, recv2));
                                
                Console.Write("Pesan Server : ");
                input2 = Console.ReadLine();
                if (input2 == "exit")
                    break;
                newsock.SendTo(Encoding.ASCII.GetBytes(input2), tmpRemote); //masuk keserver
                data = new byte[i2];
                try
                {
                    string pesanDariClient = Encoding.ASCII.GetString(data, 0, recv);
                    data = Encoding.ASCII.GetBytes(pesanDariClient);
                    newsock.SendTo(data, data.Length, SocketFlags.None, tmpRemote);

                    recv2 = newsock.ReceiveFrom(data, ref tmpRemote);
                    stringData2 = Encoding.ASCII.GetString(data, 0, recv2);
                    Console.WriteLine("Terkirim >> " + stringData2);
                    
                }
                catch (SocketException)
                {
                    Console.WriteLine("Perhatian: terjadi kehilangan data");
                    i2 = i2 + 20;
                }
                
            }
            Console.ReadLine();
            newsock.Close();
            Console.ReadLine();
        }
    }
}