A ATTENTION A When you received the new camera, it is not match to your NVR box, Pls refer to below steps to match them: Warm Note: We have two different matching modes, 1: if your camera has a Net port, please refer to below steps: 1)Pls connect the camera with your NVR box by LAN cable 2)Delete the "IP disconnect” camera channel 3)Right click your NVR box mouse —> Video Manage — click Search/Refresh — Match code — Add one/Auto add — Exit, Or you can also refer to our video on YouTube.