On phone with TappyTalk so I can't actually code it, but the easiest way would probably be to grab Visual Studio 2012 Express and make a C# application.
You'd basically need to set up a timer that pings every X account of time, them use the PingReply object to get information about the response time.
http://msdn.microsoft.com/en-us/libr...tion.ping.aspx
http://msdn.microsoft.com/en-us/libr...pingreply.aspx
Terrible phone code below. If no one else replies before I get home, I can give a better example.
Code:
Ping ping = new Ping();
try
{
PingReply reply = ping.Send(HOST);
if (reply.Status == IPStatus.Success)
{
// Ping successful
}
else
{
// Ping failed
}
}
catch(Exception ex)
{
// Something else
}