C#, Como Hacer Ping a Ip Fija, Reiniciar Tarjeta de RED

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.NetworkInformation;
using System.Diagnostics;



namespace MonitorPC
{
public partial class FrmPrincipal : Form
{
public FrmPrincipal()
{
InitializeComponent();
}

private void FrmPrincipal_Load(object sender, EventArgs e)
{
txtIp.Text = "200.44.32.12";
txtTiempo.Value = 3;
butEmpezar.Enabled = true;
butDetener.Enabled = false;
empezarCiclo();
}

private void empezarCiclo() {
decimal vvalor=0;
vvalor = txtTiempo.Value;
tiempo.Interval = Convert.ToInt32(vvalor) * 60000;
tiempo.Enabled = true;
butEmpezar.Enabled = false;
butDetener.Enabled = true;
this.lblRespuesta.Text = "";
txtTiempo.Enabled = false;
txtIp.Enabled = false;
}

private void butEmpezar_Click(object sender, EventArgs e)
{
empezarCiclo();
}

private void butDetener_Click(object sender, EventArgs e)
{
tiempo.Enabled = false;
butEmpezar.Enabled = true;
butDetener.Enabled = false;
this.lblRespuesta.Text = "";
txtTiempo.Enabled = true;
txtIp.Enabled = true;
}

private void reiniciarTarjetasdeRed()
{
ProcessStartInfo info = new System.Diagnostics.ProcessStartInfo("CMD.EXE", "/C ipconfig /release");
info.Verb = "open";
System.Diagnostics.Process.Start(info);

info = new System.Diagnostics.ProcessStartInfo("CMD.EXE", "/C ipconfig /renew");
info.Verb = "open";
System.Diagnostics.Process.Start(info);
}

private void reiniciarPC()
{
ProcessStartInfo info = new System.Diagnostics.ProcessStartInfo("CMD.EXE", "/C shutdown /r");
info.Verb = "open";
System.Diagnostics.Process.Start(info);
}

private void tiempo_Tick(object sender, EventArgs e)
{
bool vhayError = false;
try
{
this.lblRespuesta.Text = "- - - - - -";
Ping Pings = new Ping();
IPStatus status;
listMensajes.Items.Add("Ejecutando Ping...!");
if (Pings.Send(txtIp.Text).Status == IPStatus.Success)
{
status = Pings.Send(txtIp.Text).Status;
this.lblRespuesta.Text = "Ping Succeded !!!";
listMensajes.Items.Add("Ping Succeded !!!");
this.lblRespuesta.ForeColor = Color.Green;
vhayError = false;
}
else
{
status = Pings.Send(txtIp.Text).Status;
this.lblRespuesta.Text = status.ToString() + " !!!";
this.lblRespuesta.ForeColor = Color.Red;
tiempo.Enabled = false;
vhayError = true;
listMensajes.Items.Add("!!! Ping Error !!!");
}
}
catch (System.Net.NetworkInformation.PingException ex)
{
//System.Windows.Forms.MessageBox.Show(ex.Message, "Tienda On Line - Error");
Console.Write(ex.Message);
listMensajes.Items.Add("!!! Ping Error !!!");
listMensajes.Items.Add(ex.Message);
tiempo.Enabled = false;
vhayError = true;
}

if (vhayError == true) {
listMensajes.Items.Add("Inicio Reiniciando Tarjetas");
reiniciarTarjetasdeRed();
tiempo.Enabled = true;
listMensajes.Items.Add("Fin Reiniciando Tarjetas");
}
}

private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
ProcessStartInfo sInfo = new ProcessStartInfo("http://computacionysistemas.blogspot.com/");
Process.Start(sInfo);
}

private void FrmPrincipal_Resize(object sender, EventArgs e)
{
if (FormWindowState.Minimized == WindowState)
{
Hide();
trayBar.Visible = true;
}

}

private void trayBar_MouseDoubleClick(object sender, MouseEventArgs e)
{
Show();
WindowState = FormWindowState.Normal;
trayBar.Visible = false;

}

private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
Show();
WindowState = FormWindowState.Normal;
trayBar.Visible = false;

}

private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
Application.Exit();

}

private void mostrarMilisegundos() {
decimal vvalor = 0;
vvalor = txtTiempo.Value;
vvalor= Convert.ToInt32(vvalor) * 60000;
labMilisegundos.Text = vvalor + " Milisegundos";
}

private void txtTiempo_ValueChanged(object sender, EventArgs e)
{
mostrarMilisegundos();
}

private void button1_Click(object sender, EventArgs e)
{
reiniciarPC();
}
}
}