I have an AirPrint compatible Printer HP 100 Envy D410 and recently purchased a Bose sound-link air system.. Both use Apple's air print/play technology.. When connected through my husbands Verizon MiFi they work great.. but when they run through our Zyxel PK500Z Modem they don't work or work once and then loose the connection with the Modem. I have called Century Link and they tell me the modem is the most "Apple Compatible" they have and even replaced it with a new PK5000Z b/c maybe the other was defective.. but same problems persist. Music doesn't play b/c can't find AirPrint and our iPhones/iPad can't find the printer. Frustrating!