sockets - Weird C# Ping Exception -

i'm experiencing annoying problem in c# application. reason, code causing system.net.sockets.socketexception result: "no such host known." , 'connected' false.

bool connected;  try {     ping pinger = new ping();     pingreply reply = pinger.send("http://www.google.com", 15000);     connected = reply != null && reply.status == ipstatus.success; } catch { } 

the strange thing both pinging using command prompt , http requests result in success. have idea why code failing?

it's failing because it's taking http:// part of host name, rather protocol.

ping not use http protocol, uses icmp. changing code following fix issue

ping pinger = new ping(); pingreply reply = pinger.send("www.google.com", 15000);