It may be known but there is so much that can be changed that it's a mystery. In fact, I can only guess this is Windows XP or later (IE8 is not on Windows 3, 95, 98, 2000, NT or ME.)
Also, the result of ping is not here.
My Siemens router is connected, the icon and all network properties says everything is connected and working fine. I have pinged IP and deleted all history, etc, etc, and I still get "cannot display" on IE8. Recently had a trojan virus, and can't figure out what got changed.