Problem changing camera position

[it_484462163448014]

This is the situation:
We have 8 cameras, tested connected all to NVR no problems.
There is a internet line without bandwidth problems.

NVR connected to GigabilSwitchA and one port with a iniector and a sigle cam connected.
This switch is connected to the main Router.
An other GigabitSwitchB(POE) is connected to the main Router.

Now I have 3 cameras connected to GigabitSwitchB(POE), detected from NVR.
An other single connected to the iniector connected to GigabilSwitchA, is also detected from NVR.

But if I replace the camera connected to the iniector with an other camera, or connect the camera to the GigabitSwitchB, is not detected.
(changing all remaining cameras same problem).

We have leave connected one camera not functioning to GigabitSwitchB, after some hours have began to work.
Why is it happening?

[Reolink Fiona]

@it_484462163448014
You can try to rea*sign the camera channel on the NVR. Delete the offline camera and scan the camera again. You can refer to this article, https://support.reolink.com/hc/en-us/articles/900003769346-How-to-Delete-Offline-Camera-Information-on-Channel-Management-Page-via-Reolink-NVR-New-UI-. Hope this helps.

[it_484462163448014]

@it_484462163448014
You can try to rea*sign the camera channel on the NVR. Delete the offline camera and scan the camera again. You can refer to this article, https://support.reolink.com/hc/en-us/articles/900003769346-How-to-Delete-Offline-Camera-Information-on-Channel-Management-Page-via-Reolink-NVR-New-UI-. Hope this helps.

Sorry but Channel management menu don't exist.
NVR model is RLN16-410
Firmware v3.0.0.123_21031206