Are the cameras wireless?
Yale WIFI cameras do not require a wire to connect it to the DVR, these cameras do however need to be plugged into a power source (these are not battery powered). Only for the first set up, you need to connect the cameras to the router using the ethernet cable. Once the set up is completed you can use the cameras with the wifi connection.
Only for the first set up, you need to connect the cameras to the router using the ethernet cable. Once the set up is completed you can use the cameras with the wifi connection.