"Config Error 18" means that a camera needs to be initialised before it can be used on the NVR.
To initialise a camera you will need a laptop with Config Tool and either a PoE switch or a 12V power supply.
Connect a laptop to the switch the camera is connected to and open Config Tool.
(Alternatively, power the camera with a 12V power supply and connect it to the laptop using an ethernet cable)
Tick the camera you wish to Initialise, then click "Initialize"
Click "Search Setting"
Tick "Current Segment Search", then click "OK"
Click "Initialize".
Enter a Password and an Email Address (Untick the box next to Email address if you don't wish to set one) and click "Next".
Click "OK"
Click "Finish".
You can now plug the camera back into the NVR as it has been initialised.
If you have this issue, it means Camera Registration is trying to access your camera with the incorrect login information.
Open Camera Registration by right clicking and selecting "Camera Registration" OR by Navigating to Main Menu > Camera > Registration
Click on the Modify pencil of the camera with the error. It's Status will likely be red.
Enter the password of the Camera (You would have set this during the initialisation process in Config Tool) and click "Connect", then "OK".
If you still see the Account Locked error, you may need to reboot the camera by unplugging it briefly.
If you have this issue, it means Camera Registration is trying to access your camera with the incorrect login information.
Open Camera Registration by right clicking and selecting Main Menu > Camera > Camera List
Click on the Modify pencil of the camera with the error. It's Status will likely be red.
Enter the password of the Camera (You would have set this during the initialisation process in Config Tool) and click "Connect", then "OK".
If you still see the Account Locked error, you may need to reboot the camera by unplugging it briefly.