NVR RLN12W - can't connect to Argus 3 Pro battery cameras (customer support says camera is supported)

outplace6

Customer support says that Argus 3 Pro battery cameras CAN connect to NVR RLN12W ("I would like to share that the RLN12W can work with the battery WiFi camera.").

How do I connect my Argus 3 Pro cameras to NVR RLN12W?

I have the ethernet cable connected to my Spectrum provider router. Do I connect to 5g WIFI from NVR RLN12W on my iPhone and connect each camera that way (setup via Reolink App)? Problem is - The 5G WIFI from the NVR RLN12W is unresponsive though (even though NVR can update).

How do I setup NVR RLN12W with my Spectrum wifi? (ethernet is connected, confusing)

Any tutorials on how to connect Argus 3 Pro cameras to NVR RLN12W?

Thanks