If you’re connected via wifi, it’s telling you that you don’t have an internet connection, which is expected behavior. “Wifi” and “internet” are not synonymous. You’re connecting to the wifi of the Phantom. Think of “wifi” as a type of radio signal. It’s simply a means to deliver a signal. Your home wifi delivers the internet. Your Phantom wifi delivers information from your drone. There’s no reason to be connected to the internet when flying. Your phone, being used to connecting to your home wifi to connect you to the internet, doesn’t know the difference between wifis so it’s telling you “Hope you’re not wanting to surf the web on this wifi connection (to your Phantom) because we can’t find it. In short, just fly. You neither want nor need an internet connection to fly.