Can someone tell me how airplay works?
When I airplay from my iPhone x to my apple TV, do both of them need to be on the same network or will it work through the iPhones Bluetooth. And what about if I'm playing content via the phones data 3g/4g? (I've managed this in the past but now have trouble getting it to work)
Apple TV, iOS 10.1.1
does not work over the internet, does not work with bluetooth apart from how a normal a2dp bluetooth profile supporting headset / speaker
read
AirPlay video from your iPhone, iPad, or iPod touch - Apple Support
https://en.wikipedia.org/wiki/AirPlay
port 443, 554 & 3689 needs to be allowed on the networks router
TCP and UDP ports used by Apple software products - Apple Support
and if iOS device and appletv are on say wired ethernet vs. wifi or wifi 2.4Ghz vs. wifi 5Ghz then the router has to bridge those networks (I believe it's default they do though)
Airplay
