I have an HP 2000 notebook, and an HP Photosmart 7510e all in one printer with wireless set up. Suddenly I can not print. I get message Unable to communicate with printer........the printer is unavailable or not connected....Everything worked fine last night but not this morning. I have run test on printer and no problems found. Wireless is on, and it is connected to the correct network. I even un-installed and re-installed the printer. I have attempted to run a trouble check from computer all day but the page is unavailable for some reason. What the heck is going on? It' got to be something fairly easy to fix if I knew what I was looking for.