How to use HttpWebRequest in a forever loop to get the continuous value from a local network device.

I want to get a constantly changing value from a local network device, for example 192.168.1.5/something.html and I need to get it continuously to see the value is changing or not. I have done it using WWW object but the result is it give me the value very slow. Therefore, I want to learn how to use HttpWebRequest or WebRequest to get the value continuously from local device. Please help me!!!

Look into (web)sockets and just always having an open connection. The way you are doing it right now is ddosing your own webserver.