answer:First of all, the iPad 2 did not have Retina Display. The two iPad models released in spring and fall of 2012 have Retina Display. My iPad is the spring 2012 model, and my fiancé has the iPad 2 from 2011. We both tend to lose WiFi on the iPads even when our other devices are able to get a signal. Sometimes, switching the iPad into Airplane Mode and then out again is enough to reconnect. Sometimes I have to shut it down and restart. Once in a while the WiFi Router has to be restarted. We have not looked deeper into the issue at all – if you want to research further, you can go to the Apple Support page which has links to official Apple information as well as the forums/communities where users discuss things. There are MANY other Apple-focused forums and sites out there, such as MacWorld.com, and The Unofficial Apple Weblog TUAW.com.