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Hi to all! New guy in CCTV system company, hoping to learn more things here.

Hi! All my camera are connected to a PoE switch, I have 5 NVR and PC also connected to switch but I cant get the NVR to work/record simultaneously, every time I connect the second NVR to switch the first NVR recording becomes intermittent same goes with the second NVR. I connected the LAN port...