WiFi disconnected after lock screen (iOS 6)
I work in a place with no cellular reception, so I completely rely on WiFi to receive message, and calling.
Everything was good until updated to iOS 6. The WiFi always disconnected after lock screen. It means that I can't rely on any notification through WiFi now, and since I don't have signal, basically I'm completely isolated from the world.
I know this was an issue befor iOS 4, and since iOS 4, Apply decided to keep WiFi connected even when it's locked. I don't know why iOS 6 went back to the old issue again.
iPhone 3GS, iOS 6