SimplyMorbo
New member
If this is the case, it is reconnecting rapidly. My iphone is constantly buzzing when I get a new email in. Often times it comes through faster than it does on my L920, which is currently my daily driver. Also, my iphone is locked, and logging into the router through my pc shows that it is still connected (just checked). So again, if it is disconnecting, it is reconnecting quite frequently, which baffles me. If the point is to conserve battery, I wouldn't expect it to disconnect and reconnect as often as it seems to be... I can't speak for iPad or any non cellular Apple device as I don't own any of those.
I also have an iPhone (4S) and it definitely disconnects from Wifi when idle. I can see it reconnecting to Wifi (very quickly) every time I switch on the screen again. AFAIK iPhones do disconnect from Wifi in standby if they have a decent mobile network connection that they can switch to. Without a SIM card there is no mobile connection so the iPhone stays connected to Wifi. It also seems to stay connected if the mobile network signal is rather weak and also if it is connected to the charger, at least I think so based on my experience with my own device. Unfortunately Apple has never documented the exact behavior anywhere.