I have a iPad 3 running iOS 7.0.4, and an iPhone 5S running iOS 7.0.3. I am trying to connect through our office wifi. I have tried on several different other wifi locations at friends houses with the same result. The iPad always connects, the iPhone does not.
I tried disconnecting and reconnecting the wifi and deleting and reloading the app. Still does not work.
I should add that I can get the iPhone to connect perfectly when I'm on my home network. I even get the message congratulating me on having OOH access set up. For some reason, though, it quits once I leave my home network. Again, though, the iPad continues to work.