My IPhone will not pick up WiFi, doesn't give me the option, even though I have it turned on and I have the "ask to join networks" turned on. This just stopped working within the last month.
Try settings - general - reset - reset network settings. You will have to re enter known wifi passwords.
IF that doesn't help take a look at this link http://support.apple.com/kb/TS1398
Tried the Settings - general, etc already, still not working! Thanks.
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