The technical starting position
Without a overview, a camera can receive a different address after a restart or a new device can replace an existing camera. This often only becomes apparent when the recording disappears.
advice
Set up IP address plan for cameras
A camera address plan prevents expansion or router change from leading to duplicate addresses and unreachable channels.
What you calculate or measure
Inventory current addresses, NVR, switches, router range, and any external devices. Determine who manages the addresses and what reservation space is needed for growth.
The intervention that fits
Choose a consistent plan with clear names and record the address, camera, channel, and physical gate. Manage and change addresses simultaneously.
Proof that it works
Check all cameras after a restart and test NVR recording. Update the documentation immediately when an expansion or change occurs.
Frequently asked questions
Do cameras need a fixed IP address?
A predictable and documented allocation helps management; the method depends on the network design.
Why are double IP addresses dangerous?
They make connections unpredictable and can interrupt recording.