IPhone won't connect to school Wi-Fi but connects to home Wi-Fi?

My phone will connect to my home Wi-Fi and when I got to school it worked for a tiny bit and within the next hour with me not doing anything with the Wi-Fi, I couldn't connect. However other people's iphones work. I reset the network settings and rebooted the phone but nothing helps. However my phone works on my home Wi-Fi.

Added (1). I'm on iOS 7.0.4, the newest version. It says: Unable to join the network "Wi-Fi"

What kind of error? You got, when you are trying to connect it to your school Wi-Fi?

Update your iPhone to latest iOS.
Make sure, VPN/Proxy disabled on your iPhone.
Factory restore your iPhone

They probably have a block on it for devices, it may be an open network but you will need a username and password when you get redirected. Won't be anything to do with your iphone.

School connection would have limitation sometimes, that's why you couldn't conect to Wi-Fi. But when you are home, you can turn your laptop to be hotspot with My Wi-Fi Router, all of your devices can share internet at the same time

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