According to specs it support the ONVIF standard, but …I suggest the following:
1.update firmware in the camera snd test again with onvif source.
2.D-link cams are quite standardized when it comes to url so one of these URL’s will work. Add the camera using the tab Custum Source. Set stream type to rtsp_tcp. In address test:
The 1 corresponds to profile 1 above. This will give you video and audio.
3.There is also a predefined template for that camera.