Certain iPhone apps not working with new xFi Gateway modem/router

I just installed a new xFi modem and router today, and ever since I did I am having certain iPhone apps not responding with it. Overall, the internet and most apps seem to work fine, however, it will no longer download new apps in the app store, it won't stream podcasts in the Apple podcast app, and a couple of other apps won't load when I am connected to the new wifi. They work just fine if I connect to a different wifi network. Any idea on if there's something I can do about this?