Program to continuously check availability of internet connection c#

Question

I have a C# program to check if a hard coded host is available and if not, waits then checks again (this is a loop in form of recursion). How can it be enhanced?

using System;
using System.Net.NetworkInformation;
using System.Windows.Forms;
namespace trial17
{
 public partial class Form5 : Form
 {
 public Form5()
 {
 InitializeComponent();
 }
 static Ping p = new Ping();
 static string host = "8.8.8.8";
 static byte[] buffer = new byte[32];
 static int timeout = 1000;
 static PingOptions po = new PingOptions();
 static PingReply pr;
 static bool load = false;
//plays media if connected 
System.Media.SoundPlayer player = new System.Media.SoundPlayer("media file path");
 private void Form5_Load(object sender, EventArgs e)
 {
 try
 {
 Show();
 conn();
 }
 catch (Exception ex)
 {
 MessageBox.Show(ex.Message);
 }
 }
 async void conn()
 {
 try
 {
 pr = p.Send(host, timeout, buffer, po);
 if (pr.Status == IPStatus.Success)
 {
 player.Play();
//label updated after connection
 label1.Text = "Connected";
 }
 else
 {
 await System.Threading.Tasks.Task.Delay(200);
 conn();
 }
 }
 catch (Exception) {
 }
 }
 }
}

Answer 1

You probably want to avoid using recursion on conn. Say you did not have internet connection for a long time. Then, for every failed connection you will add a new entry to the call stack. Which could eventually lead to a stack overflow.

It's probably a better idea to have two methods. Something along the lines of:

// Ignoring exception handling for sake of simplicity
bool checkConnection()
{
 pr = p.Send(host, timeout, buffer, po);
 return pr.Status == IPStatus.Success;
}
async void connectionTask()
{
 while (!checkConnection())
 {
 await System.Threading.Tasks.Task.Delay(200);
 }
 player.Play();
 //label updated after connection
 label1.Text = "Connected";
}

• user14773854: Is the Task.Delay() method capable of causing a Stack Overflow? And how long should my optimal delay time in ms be?
• aepot: avoid async void.
• user14773854: @aepot I tried running this program for 10 minutes and it caused a BSOD with an error regarding unchecked kernel. What happened?
• aepot: @user14773854 C# can't cause OS kernel fault because it's managed code. Probably there's some drivers or hardware issue.