Answered here https://developer.apple.com/forums/thread/797554

Wow thanks for the quick reply! I'm going to try different priority settings to find what works well.

One more question https://www.reddit.com/r/iOSProgramming/comments/1bbd06v/cant_update_live_activity/?show=original Found this post and after trying that I went through the same. WIFI works well but cellular doesn't work. Just want to know if I need to be worried about the network, or just focus on the priority