Why my iphone 5 randomly disconnect from Wi-Fi? - 1

Hi! Why my iphone 5 randomly disconnect from Wi-Fi?

Possibles -
Too far from router
Walls getting in the way
Interference from household electrics and electronics

Timbo is correct, but another possibility is that pesky kid next door has fired up BackTrack and is Injecting De-authentication packets using aireplay-ng.

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