This LaView NVR LV-N5216D6E & IP camera LV-PZ804N4, aka, NC-GR2400 are not manufactured by Hikvision. It is manufactured by HANGZHOU ZENOINTEL TECHNOLOGY CO., LTD.
192.168.1.5 is a LV-N9808C8E which SADP tool recognizes
192.168.1.6 is the LV-PZ804N4, aka NC-GR2400 IP camera
both NVR LV-N5216D6E & IP camera LV-PZ804N4 have a 6 character password limit. Meaning password maybe 1 to 6 characters, alpha numeric only, no symbols.
NVR manual camera adding method, a 6 character password may be entered & protocol set to ONVIF. Where as the LV-N9808C8E with firmware V3.4.62 requires a 8 character password minimum for activation. Unfortunately a LV-PZ804N4/NC-GR2400 can not be added to Hikvision branded NVR due to the password limitation.