We have pre-wired Cat6 camera cables that ultimately connect to the smart pane in the garage. The internet also originates in the garage. I need to send both of these to the Router to the second floor. A Cat6 cable is prewired to this location. I used a switch to combine these 4 cameras and internet to send up to the router. I have internet, but the cameras will not show a picture when the NVR is connected to the router. Am I missing something? Please help. Thanks