IPad and iPhone Won't Recognize Wi-Fi Network?

I'm in college, and the university has a Wi-Fi network that has WPA2 Enterprise security. I successfully connected to the network months ago, in the fall, and haven't had any trouble with it since. As of this morning, neither my iPad or iPhone will recognize the network anymore. When I attempt to connect to it, it will exhibit all the signs of being connected but safari won't work and neither will apps that require internet connection. A few seconds to a few minutes later, it will just disconnect.

When I first connected to this network, a window popped up telling me my device is registered and to wait a few minutes for my device to recognize the new network. It did, and I never saw that window again. It is popping up again today every time I try to connect to the network, but it has been many hours since it first did this so obviously something isn't right. Any ideas as to what could be going on here?

It may be a problem with the Wi-Fi, rather than your devices. Does it work on anything else?

It's very unlikely that an iPhone and an iPad will mess up at exactly the same time, so it's obviously not a fault with your devices.

You should try it again later/tomorrow. Hopefully you will be able to use your 3G on your iPhone for now.

Try to see is you can reconnect your device, if your device does still not read it see if the Wi-Fi router is connected properly. If it is not connect properly have the router reconnected.