Updated to 6.1.2 now Wi-Fi won't work

I have an iPad 2. I just updated to 6.1.2 and now my home Wi-Fi no longer works. It DID work before.
The Wi-Fi DOES work at other locations, just not at my home any more. When I try to connect to my home Wi-Fi, it asks for my password. When I enter it, about half the time it says it is an incorrect password, the other half it just says "failed to connect." I HAVE confirmed that I am entering the right password.
Here's what I have tried.
Turning off /on the iPad.
Rebooting my home Wi-Fi connection.
Turning off/on Wi-Fi on the iPad.
Turning off/on Airport mode.
Setting my home network to "Auto."
Having the iPad "forget" my home network before trying again.
Reseting the network connection on the iPad.
Recharging the iPad.
Making sure brightness is turned all the way up.
Erasing all content and doing a full restore on the iPad.
Nothing works. Any ideas?

Click it
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Updated to 6.1.2 now Wi-Fi won't work

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