Streaming error

Cannot answer Video Doorbell Pro Wifi with iphones. Doorbell rings, iphones get message, when opening app, activating devices spins for 20 sec followed by streaming error message. Same one several phones. Updated apps. Testing in the house, wifi router very close to doorbell, wifi and internett speed 130+ mbps up and down. Tired pushing setup button on doorbell pro and reinstalled it.

Need help please.