If I set local network IP to IntegratedSocket, I get error:
A first chance exception of type 'System.ArgumentException' occurred in System.Http.dll
An exception occured while connecting to the Internet. Please, make sure that a valid URL is used and a network connection is up.
Exception was thrown: System.ArgumentException
Of course I tested URL in browser and it works.
HTTP_Client WebSession = new HTTP_Client(new IntegratedSocket("192.168.1.50", 80));