Windows Service Starts, Runs Timer Job Once then Quits?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Data.SqlClient;
using System.Net;
using System.Net.NetworkInformation;
using System.Threading;
using System.Globalization;
using System.Timers;
using System.IO;
using WindowsService1.ServiceReference1;

namespace WindowsService1
{
    public partial class Service1 : ServiceBase
    {
        public static double infinity = double.PositiveInfinity;
        public static int pingCount = 0;
        public static long avgRtt;
        public static System.Timers.Timer timer1;
        public static System.Timers.Timer timer2;
        public static Service1Client client = new Service1Client();

        public Service1()
        {
            InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {

            timer1 = new System.Timers.Timer();
            timer1.Interval = Convert.ToDouble(3000); //timer intraval in milliseconds
            timer1.Elapsed += new System.Timers.ElapsedEventHandler(timer1_Tick);
            timer1.Enabled = true;

            timer2 = new System.Timers.Timer();
            timer2.Interval = Convert.ToDouble(3000); //timer intraval in milliseconds
            timer2.Elapsed += new System.Timers.ElapsedEventHandler(timer2_Tick);





        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            //Latency lat = new Latency();
            //       lat.stationName = "me";
            //       lat.stationip = "myip";
            //       lat.latency = 2;

            //       client.submitData(lat);
            calcLat();
        }
        private void timer2_Tick(object sender, EventArgs e)
        {
            SqlConnection cs = new SqlConnection(@"Server=130-ASQL1-P-001.OSCA.LOCAL;Initial Catalog=AIM;User ID=user;Password=pass");

            SqlCommand cmd = new SqlCommand("select * from NIM_Latency where stationName='" + System.Environment.MachineName + "'", cs);

            cmd.CommandType = CommandType.Text;

            cmd.Connection = cs;

            cs.Open();

            SqlDataReader dr = cmd.ExecuteReader();


            dr.Read();
            if (dr.HasRows)
            {


                IPHostEntry host;
                string localIP = "";
                host = Dns.GetHostEntry(Dns.GetHostName());
                foreach (IPAddress ip in host.AddressList)
                {
                    if (ip.AddressFamily.ToString() == "InterNetwork")
                    {
                        localIP = ip.ToString();
                    }
                }

                Latency lat = new Latency();
                lat.stationName = System.Environment.MachineName;
                lat.latency = avgRtt;
                lat.stationip = localIP;


                
                client.updateData(lat);

                dr.Close();
                pingCount = 0;
                client.Close();
                cs.Close();


            }
            else
            {

                IPHostEntry host;
                string localIP = "";
                host = Dns.GetHostEntry(Dns.GetHostName());
                foreach (IPAddress ip in host.AddressList)
                {
                    if (ip.AddressFamily.ToString() == "InterNetwork")
                    {
                        localIP = ip.ToString();
                    }
                }

                Latency lat = new Latency();
                lat.stationName = System.Environment.MachineName;
                lat.latency = avgRtt;
                lat.stationip = localIP;

                client.submitData(lat);

                pingCount = 0;

                dr.Close();
                cs.Close();
                client.Close();
            }
        }



        protected override void OnStop()
        {
        }

        public void calcLat()
        {
            //client.Open();

            var ping = new Ping();

            var reply = ping.Send("10.209.224.100", 3000);

            avgRtt = (avgRtt * pingCount++ + reply.RoundtripTime) / pingCount;

            pingCount++;

            if (pingCount == 4)
            {
                timer1.Stop();
                timer2.Enabled = true;
            }
        }
    }
}