All of a sudden my Photosmart 6520 lost its connection to the wifi network. It can no longer see the wifi network, even though the printer is 1 foot from the router. It is not a new router nor any other new hardware - all other computers, ipads, etc. in the house can still see and connect to the wifi network. I have hard rebooted all hardware and the printer, no help. I also tried renaming the wifi network - Photosmart still couldn't see it. This is baffling to me - why can't the printer see the wifi?