I kept my Ipad 3 on airplane mode for 3 weeks..how to start it?
then I can`t now complete connection to internet and iCloud... how to start it?
iPhone 3G, iOS 6.0.1
Have you tried resetting the device? switch it off airplane mode. then hold down the shift and home keys, past when you see the red power down slider and util you see the silver apple. Let it reboot and try to connect again.
you may also n eed to power cycle your router (unplug it and plug it back in)