Originally Posted by
gfunkdave
It's not that Apple devices have inferior wifi. It's that the wifi drivers for every device are different. Some drivers (in your case, the ones Apple uses in the iPad) have trouble with others (like the ones used in the particular wireless access point you were trying to connect to).
It has nothing to do with router "drivers". If rebooting the iPad fixes the issue, then it's obviously not a router problem.
Apple has wifi bugs in iOS 6 (A quick google search shows 1.8 million hits for "iPad 6.1.3 wifi problems"). For whatever reason it seems to lockup on some SSIDs. Many have reported that iOS 5 worked better than iOS 6. I have witnessed this myself many times on my iPad 4. Sometimes toggling the wifi off/on fixes it, but usually it requires an iPad restart. Also, some saved SSID's won't connect even when they're in range (gogoinflight comes to mind). Then I have to go to settings, click on the SSID and connect.