Hi. Ive just installed a hikvision ptz camera in a barn using nanobeam wireless bridge to the nvr in the house. Iv got it up and running with the nanobeam plugged into port 1 on the nvr. Im now trying to connect a second camera in the barn using the same wireless bridge using a 4 port switch at the barn but cannot view the second camera. Do i need a switch at the house end to have a camera pugged into port 1 and 2 of the nvr or do i need to do something else