Like I said, most don't have an issue, but if they do, chasing camera settings isn't going to do it.
And we have seen some of these cameras in 2024 still perform better with Internet Explorer, like that member that kept getting false triggers and turned out that in Edge it showed MD was turned off, yet logging in with Internet Explorer showed MD turned on.
Maybe an anomaly, maybe not, but I am sure you will admit these processors are not the most current technology out there and thus goofy things happen.
Wildcat, a trusted member here that works closely with Dahua and can get "under the hood" and has seen that using Internet Explorer doesn't result in problems, even for camera firmware that claims other browsers work, and he has seen firmware not take properly.
So in the big scheme of things, Internet Explorer is still available and I use it ONLY for these cameras and it doesn't take that long to factory reset 3 times.
The one time I didn't I lost functionality of the camera and couldn't access every menu LOL.