
Workaround (not elegant at all), was to add the first camera, then go and open config/.storage/nfig_entries, find the camera, change the unique_id set to a different mac address, restart HA and add the second camera. Unfortuntaly the Onvif integration is picking the first one which was the same in the two cameras. But using Onvif Device Manager and looking at “Information” turned out that the camera exposed two MAC addressed, I guess the first one used when in AP mode and the second one when connecting to Wifi as a client. My cameras have of course different MAC address but still I got the exception. If not available, falls back to the serial number.

The first camera always integrates succesfully via onvif, the second always complains about “Device is already registered” (also messes up the working configuration). ONVIF discovery/configuration software for Mac Hello. You can use this tool to connect and explore.

Hi, I’ve experienced the same issue with a bunch of Imou cameras and found a solution which worked at least for me. ONVIF Device Manager is free software that can be used to test out CCTV devices that are ONVIF protocol compliant.
