IPhone 5 won't connect to any networks at all?

I just recently purchased an iPhone. Well, for the past couple of hours I have been trying to connect it to my Wi-Fi network, but it keeps giving me the "unable to join" message, (P.S. I'm typing my password in correctly). I have tried turning the phone off & on, resetting my network settings, turning my router off & on, adjusting the brightness (on a forum, it was suggested it might work), I tried to see If I was behind in any kind of update, I'm all caught up. NOTHING seems to be doing the trick. Just when I thought it was my router it was only rejecting, nope. I went to starkbucks, and the "unable to join" message popped up when I tried to connect. I'm starting to think its hardware issues with the phone.

Any advice?

Maybe your Wi-Fi has problems

I had this issue, among many others, when I got an iPhone 5 with sprint. Go into the apple store and tell them your problem. They should be able to tell you what's wrong and fix it (they can run diagnostics and such). I think for my phone it was a software issue that happened when I transferred over from my old phone. Sidenote, I went back to AT&T. They took me back and I got an iPhone 5 through them and haven't had any problems.

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