I have a C320SW camera in my LAN where I have blocked any access to the WAN for security reasons using the Omada gateway. However, I encounter two issues:

1. The camera's clock resets when rebooted - wrong date. I may need accces to NPT ?
2. When accessing the camera through the VPN server from an external network using the app, I can toggle the privacy mode on and off successfully, indicating that some commands can be sent to the camera (trough  VPN).

However, I am unable to view the camera stream unless I use this workaround:

a. Select camera,

b. Click on Playback-Download

c. Toogle play from microSD card

d. Then reverting back (no card is inserted), and works, all functions works trough VPN.

Seems the app first attempts to connect through the cloud and stays there. So works trough VPN. Let's try to avoid this flip-flap trough menus to make it working.

Edited: After a while, still works, but after a time period the video stops, I think it is by design. To regain the video stream again you have to use again the workaround.

My preference is to avoid using the cloud and instead allow users to access privately their cameras through VPN by default or by option set.

I use ZoneMinder with zmNinja privetly trough VPN if really needed from outside.