As many of us know, Dahua is just junk from China where support for the end user is just non existent. As we are all finding out that if you use a Mac computer SmartPSS DOES NOT WORK with recent OS upgrades. So i'm trying to find a solution to being able to utilise a desktop Mac computer and view your cameras. Uniview desktop software EZViewer will run on Mac OS Catalina & Big Sur, you can see the NVR and the cameras but they dont 'connect' in the software and are not viewable. So just throwing this out there for the tech gurus who might be able to find a workable solution. As you can see from my picture. My NVR & a couple of non Dahua cameras are visible in the interface.