Anabon field guides · Surveillance Knowledge
Field-tested fixes for cameras, NVRs, PoE and network problems — written for the technician on site, in the order our support team checks them.
When an IP camera keeps disconnecting, the timing pattern names the cause: periodic drops are power and cable, random drops are IP conflicts and DHCP leases, night drops are illuminator load on a tight PoE budget.
A 10-point checklist for an ONVIF camera not connecting to an NVR: profile, port, dedicated ONVIF user, time sync, stream settings and network, each with a one-minute test and the fix.
Three ways to add an IP camera to a CASE NVR: plug-and-play on the PoE ports, manual IP on an external switch, and ONVIF for third-party cameras, with the common errors and what each method gives up.
A six-step field procedure for an NVR that is not showing cameras: power and PoE class first, then IP addressing on the NVR PoE ports, credentials, channel bandwidth and firmware.
Live video but no playback comes down to the schedule, the camera's motion settings or the disk. Here is the per-channel sequence installers use on a CASE NVR, with what to tell the customer.
Five causes explain nearly every dead PoE camera: budget, class, length, CCA and termination. Here is the tester-first sequence installers use to find which one, with the printed figures for CASE switches and PTZs.
Check power, camera IP addresses and the correct NVR network interface. Learn where DHCP helps, how to keep addresses stable and what to check next.
