Iphone won't connect to Wi-Fi? - 1

It was working perfectly fine until I got home from school today. I didn't have it connected to any other Wi-Fi except for that 3G thing that allows you to go on the internet without Wi-Fi - but costly.
Now it says its not connected, and when I go into the settings-Wi-Fi, it says my home Wi-Fi name its trying to connect, but it won't. I've tried turning it off and on, resetting it, everything. My laptop is connected perfectly fine, but my phone is not.

Reset the wi-fi router, remove/forget the saved wi-fi information on your iPhone, then reconnect

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