iPhone won't connect to WiFi

My iPhone won't log onto my home or work WiFi. It recognizes them and I have put in the correct passwords but I just get an alert saying "Unable to join the network...".

I can't find any info on this. Any clues?

The phone connects via 3G

PowerBook G4, iPhone

Posted on Jul 3, 2010 7:51 PM

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267 replies

Nov 15, 2012 6:07 AM in response to fromsouth

Thanks for posting that reminder, even though it has been posted countless times in this and other threads. But you don't expect people to actually read the messages in a thread they post to, do you? 😉


To your list I would add that if the phone works with all networks except one the problem is most likely in the router, not the phone. Even if other devices on the same router work.

Nov 15, 2012 9:49 AM in response to Lawrence Finch

ok...reset and not working - did not recognise any wireless

Switched off / restarted and rebooted wireless - now picking it up but not accepting wifi password ~ and so unable to connect ....arghhhhHHH

- the prob was i read the original message and replies and hit reset - should have gone from the back to the begin~! and just rebooted and restarted 😢 off to Apple we go ~

thanks for the responses though.

Nov 15, 2012 10:26 AM in response to trillian001

Okay here is the temporary fix. Take your iPhone and put in a zip lock bag. Then place the iPhone in your freezer for about 5 minutes. This will fix the problem.


Now why does this odd solution work? What has happened that in iOS6 Apple tried to improve the power management of the phone for better performance. Unfortunately the testing wasn't robust enough and many wifi chips in the iPhone 4S and 5 overheat.


The iPhone protects the components inside the phone by switching off the wifi which is why the wifi greys out.


So returning your phone won't necessarily solve the problem because you might get another phone with the same wifi chip.


So until Apple come out with software fix make sure you have a freezer handy!

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iPhone won't connect to WiFi

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