I know this problem has been posted quite a bit but none of the solutions offered in those posts did anything for my problem. Here's the details. I have around 20 Ipad's all Version 4.3.1 and 10 printers all HP OfficeJet 6400a's. The printers are connected through Ethernet to the network and the Ipad's are obviously connected wirelessly. On any of the Ipad's when I try to "Select Printer" it goes through "Looking for Printers" then finally "No Printers Found". I downloaded the HP E-Print app hoping that this would fix my problems, however it displays the exact same results. I have power-cycled all of the printers, Ipads, and routers involved. The printers are visible through the Print Services and through network connected PC's but not the Ipads. And yes for the record the HP OfficeJet 6400a is on the list of AirPrint compliant printers. Anyone know what I'm doing wrong?