Please make sure the camera is compatible with ONVIF protocol, supports PoE (Power over Ethernet) and has a normal power supply.2. Right-click to bring up the control panel and navigate to "Camera", select the channel to which the camera is connected, click the operation icon, and select "Add Manually" for "Add Method"3. Please select the "ONVIF" protocol to add cameras.4. Enter your camera password (not NVR password), click "OK" and wait for the result. If the connection fails, see the error message.