Paramount+ not working

Hello everyone,

I have set up nextDNS on my UDM. Everything is working so far. I had to enter a few addresses here and there on the whitelist. However, I have a problem with the Paramount+ streaming service
Not a single piece of content starts on my SkyQ Sat receiver or on AppleTV. I can access the overview and select content, but the loading circle always appears.

It works with my TV and the app.
As I have learned, a whitelist entry is necessary so that everything also works on the Sky Box/Apple TV. But the entries I found didn't get me any further.
Do any of you also have this problem?
Thank you very much.