1.please exchange the lan cable and poe port to see can it get power on

2.plug with a extra 12v1a power adpater , if it can get power on to add this camera, then it means poe mould broken inside of the poe camera

3.you can buy a poe splitters to connect to camera port to make it work

https://www.techage.com/collections/poe-camera/products/poe-splitters-power-over-ethernet-12-volt-802-3af-

at-power-any-12-volt-device-for-ip-cameras-poe-switch