Ipad keeps losing Air Printer
I have previously installed HP Air Printer to iPad 4 and used it. I have tried to use it again and it says 'Air Printer Not Found'. I have rebooted IPad and Router. no joy. Printer and Ipad using same Internet. I have reset Network Settings, still no joy. When and if I eventually install again to iPad, how can I prevent it happening. Doing the above has solved it previously.
iPad