View difference between Paste ID: R7YsKkSP and nhvuCDkX

 using System;
 using System.Text;
 using System.Net.Sockets;
 using System.Net;
 
 
 namespace Klient_ECHO
 {
     class Program
     {
 
         public static void closeConnection(Socket socket)
         {
             Console.WriteLine("Disconnected from server...");
             socket.Shutdown(SocketShutdown.Both);
             socket.Close();
             Console.ReadLine();
         }
 
         public static void tryConnection(Socket socket)
         {
 
             bool tryAgain = true;
             while (tryAgain)
             {
                 Console.Write("Which port you want to connect [7]? : ");
                 string port = Console.ReadLine(); if (port == "") port = "7";
 
                 try
                 {
                     IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), int.Parse(port));
 
                     try
                     {
                         socket.Connect(ipep);
                         Console.WriteLine("Connected to " + ipep.ToString());
                         tryAgain = false;
                     }
                     catch (SocketException e)
                     {
                         Console.Write("Unable to connect to server, want to try with another port? [y/n]: ");
-                        if (ca.ToLower() == "y" || ca.ToLower() == "yes") tryAgain = true;
+
                         if (ca.ToLower() == "y" || ca.ToLower() == "yes" || ca == "") tryAgain = true;
                         else tryAgain = false;
                     }
                 }
                 catch (FormatException e)
                 {
                     Console.WriteLine("This is not a number, try again.");
                 }
 
             }
         }
 
         static void Main(string[] args)
         {
             byte[] data = new byte[1024];
             string input, stringData;
 
             Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
 
             tryConnection(socket);
 
             int recv = 0;
             stringData = Encoding.ASCII.GetString(data, 0, recv);
             Console.WriteLine(stringData);
 
             while (true)
             {
                 input = Console.ReadLine();
-                if (input == "close") break;
+
                 if (input == "App:CloseConnection(1)" || input == "") break;
                 else
                 {
                     socket.Send(Encoding.ASCII.GetBytes(input));
                     data = new byte[1024];
                     recv = socket.Receive(data);
                     stringData = Encoding.ASCII.GetString(data, 0, recv);
                     Console.WriteLine("Reply from server: " + stringData);
                 }
             }
 
             closeConnection(socket);
         }
     }
 }