Mac OS AirPlay with iPad shows only Blue Screen

Hallo,

I still have since long time the problem, that the AirPlay function shows only a square blue screen or sometimes a permanent connecting message at the iPad.

I disable the Firewall from Norton 360, then the AirPlay function works well after a reactivation of AirPlay.

I already had contact to the Support from Norton in the past, but they could not help me. I got the answer, that a future update would fix it. But till today nothing improved.

I use Mac OS Big Sur 11.3, Norton 360 with all updates done, an iMac Pro and iPad Pro 13" connected with USB 3 cable and Bluetooth and WiFi is on.

I already deinstalled and reinstalled Norton 360 without success. 

Please how can I add a function from AirPlay to the Norton Firewall that the AirPlay will pass the Norton Firewall without limits over all interfaces?

Thank you and best regards

Stefan