Keep getting Firmware upgrade screen when...

You have get the saoftware upgraded otherwise it's bit difficult to install it on your comp..
But still there is one way which you can try first shut down your comp...
then once it's off then start your comp and just when press on swotch hold down the F8 key on your keyboard umtil it takes you to a new screen that says safe mode at the top in that screen you'll find an option that says safe mode with networking select it through arrows keys on your keyboard and press enter...it willk take you back to your normal desktop and then try config the router with ipaddress again if it works then perfect otherwise contact dlink to get the upgrade...