I have a Nexxt NVR unit (Xpy 1280-HD) with 8-channels and it comes packaged with 4 PoE cameras. Used it for a few months.
Now I bought 4 more PoE cameras from Dahua (a totally different company/brand). model: Dahua IPC-HFW2439S-SA-LED-S2: IPC-HFW2439S-SA-LED-S2
They don't seem to power on at...