iPad 4 iCloud DISABLES wifi connection

[leonlink]

Hi everyone. I have a big problem with new iPad 4. After days of searching on web of possible resolution of wifi issue in iOS 6 (turn proxy on auto, reset Internet settings...) I restored my device to see if my wifi problems disappeared. Well after some tests I discovered that iPad LOSES wifi connection totally when it is blocked and in charge. So I thinked it was iCloud..and that it is! I tried to make a backup of iCloud with iPad not in charge and not blocked. After 2-3 minutes the iPad loses the connection and I have to disable/enable wifi.
So, what can I do? Is there a solution? Is there someone with this problem? I think it's not possible a thing like that...iCloud is a MAIN FEATURE in iOS...how can be bugged??
Tell me please!

 

[leonlink]

Please help me. I can't make a backup on icloud...is there someone in my same conditions? Do I have to go to apple store and take a new ipad?

 

[Aspasia]

If your iPad is hooked up to the charger and the screen is locked, how can you tell the WiFi is off? When my screen is locked, there is only a black screen and no WiFi icon.

 

[leonlink]

Because it doesn't receive notifications...