We have had several customers and forum users reporting problems running iVMS-4200 since updating to MacOS Catalina (10.15), the reports have varied from some saying the software runs ok but does crash unexpectedly to others saying the iVMS software does not work at all.
If you have G1 cameras (2xx3G0/2xx5FWD/2xx5G1) and/or an I-series NVR you can get around the iVMS issues by updating to the latest firmware and logging in to the NVR/cameras with any browser using the 'plug-in free'...
Problems Running iVMS-4200 on MacOS Catalina(10.15)
If you have G1 cameras (2xx3G0/2xx5FWD/2xx5G1) and/or an I-series NVR you can get around the iVMS issues by updating to the latest firmware and logging in to the NVR/cameras with any browser using the 'plug-in free'...
Problems Running iVMS-4200 on MacOS Catalina(10.15)