Ping Logger

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net.NetworkInformation;
using System.IO;
using System.Threading;

namespace Ping_Logger
{
    class Program
    {
        static string data;
        static byte[] buffer;
        static int timeout;

        static void Main(string[] args)
        {
            Dictionary<string, string> addresses = new Dictionary<string, string>();
            addresses.Add("Router", "192.168.1.1");
            addresses.Add("Modem", "192.168.0.1");
            addresses.Add("ISP", "83.169.183.125");
            addresses.Add("GoogleLocal", "173.194.116.211");
            addresses.Add("GoogleDNS", "8.8.8.8");
            addresses.Add("PublicDNS", "4.2.2.2");
            Ping pingSender = new Ping();
            PingOptions options = new PingOptions();

            // Use the default Ttl value which is 128,
            // but change the fragmentation behavior.
            options.DontFragment = true;

            data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
            buffer = Encoding.ASCII.GetBytes(data);
            timeout = 120;
            // Create a buffer of 32 bytes of data to be transmitted.
            while (true)
            {
                StreamWriter sw = new StreamWriter(@"C:\Users\OMMITTED\Documents\Results\ping.txt", true);
                DateTime curTime = DateTime.Now;
                string newLine = string.Format("{0} {1}", DateTime.Now.ToShortDateString(), DateTime.Now.ToShortTimeString());
                foreach (var addy in addresses)
                {
                    newLine += string.Format(",{0}", PingSite(pingSender, options, addy.Value));
                }
                sw.WriteLine(newLine);
                Console.WriteLine(newLine);
                sw.Close();
                Thread.Sleep(65000 - curTime.Millisecond);
            }
        }

        static long PingSite(Ping pingSender, PingOptions options, string address, int attempt = 0)
        {
            PingReply reply = pingSender.Send(address, timeout, buffer, options);
            if (reply.Status == IPStatus.Success)
            {
                return reply.RoundtripTime;
            }
            else if (attempt < 5)
            {
                Thread.Sleep(100);
                return PingSite(pingSender, options, address, ++attempt);
            }
            else
            {
                return 999;
            }
        }
    }
}