FWIW, I just successfully connected a q-see qcn8004b camera to the swann 16 ch nvr. Took a while to get this right.
I changed the password from the 888888 user to pw 12345,
Connected the camera directly to the router (no poe connection would work for me either and I got tired of tinkering with it)
Use port 85 on the onvif settings.
It took a good 10-20 seconds of black screen then connected.
I haven't tried the qcn7001b yet to see if it can use the same onvif connection.. I will try that next.