How come my Wi-Fi isn't working? (Netgear Router)?

I have the Netgear WNDR4500 router and I set everything up fine, but for some reason my Wi-Fi isn't working. The internet on my computer works and the Wi-Fi pops up on my iPhone, but when I put in the password, it'll just say "Unable to join the network". This is how I set up the Wi-Fi.
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Does anybody have idea why the Wi-Fi isn't working?

Added (1). I tried rebooting the router and it didn't work.

Added (2). I reset the password… And nothing changed. It still doesn't work.

Reboot pc modems router try again

Reset to a different password. Remember when entering passwords on a device that they are case sensitive. Most routers won't accept 'password' as a password.

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