Pressing the "Test Printers" button produced error msg: please check...

Pressing the "Test Printers" button produced error msg: please check... EVERYTHING that Ive already checked: my iPhone is using the wifi, my printer is connected to the wifi (MCbookPro prints no problem, without a cable), the printer is on (duh!). Why dont YOU check for problems outside the obvious ones, and probably problems related to the incapability of this apps "wizard" to find the devices? Very unhelpful and frustratingly patronizing app.

Movcharov about Print Agent Lite