Hi @droidd
"Lorex N841 DVR question"
I checked, and looks like it is a N841 NVR with IP PoE ports, and the camera is an IP PoE camera, all appear to be Dahua OEM.
SO it should be compatible as the NVR reports to support "4K" and the camera is "4K"
You may need to sync user / password, and...