WebRTC Camera card - Video stream takes long to load on mobile (or not at all)

I have a couple of cameras that I livestream on my dashboard. Before they have more or less started instantly but now it takes like 5 sec to load, and all cameras are not loading either. When I go to dashboard on the PC, it loads instantly. And cameras may be accessed insantly in other apps. So something is clearly related to the phone (iphone 15 with latest IOS), but I dont know why.

Any pointers what I should do?