Question

I am using ip address to find the active state of the machine

System.Net.NetworkInformation.Ping p = new System.Net.NetworkInformation.Ping();
            System.Net.NetworkInformation.PingReply rep = p.Send(ip);
            if (rep.Status == System.Net.NetworkInformation.IPStatus.Success)

Answer 1

You could use this code to check the status..and also explore this site you could get some idea…System.Net.NetworkInformation Namespace

  using System.Net.NetworkInformation;
  public bool IsNetworkLikelyAvailable() 
  {
  return NetworkInterface
  .GetAllNetworkInterfaces()
  .Any(x => x.OperationalStatus == OperationalStatus.Up);
    }