I have a Hikvision DS-7608NI-K2/8P NVR with three Hikvision cameras attached (Hikvision IPC-D140 4mm 4MP CMOS Outdoor IP Network CCTV Dome Cameras).
Intermittently the NVR will drop one or more of the cameras and a reboot and a power off/on will not always get the cameras back on line. What I...