I have an iPad 2 and a HP 6500 printer. The printer is about 3 weeks old and is networked using ethernet. Multiple computers can print to it. For a few days the iPad could print to it. The suddenly it stopped and the following error message would appear, "The printer is no longer available.". I have tried to ping the printer from the iPad and ping fails. However the printer shows up in the Printer options pop up box. Btw I can ping other wired and wireless devices from the iPad. I have a Dlink DIR 628 router with the latest firmware. I have checked the HP site and my printer firmware is up to date. Does anyone have any suggestions on how to diagnose or even fix the problem? If there is iPad print queue how do you access it? Thank you.