How to add a new non brand cam to Qsee DVR

[mwhitnell 0]

I have a Qsee DVR that has 4 RJ45 ports but the software can support 4 additional cams using my router switch. I have 3 cams in the DVR. I plugged in a offbrand IP cam...dericam onvif capatible...used the dericam config software to set the ip of the cam to 10.0.0.70, gateway the same as my router 10.0.0.1, port 85, the software Qsee says cam 1 is 10.0.0.66, cam 2 is 10.0.0.67 cam 3 is 10.0.0.68. I manually added the cam 4 to the Qsee software as cam 4, 10.0.0.70, port 85 same as all cameras and DVR. Cam 4 doesnt display...cables are ok. The Qsee screen says " 10.0.0.70 Can not find the network host", as a message on the cam display in grid CAM 4. Maybe someone can point me in the right direction to make CAM 4 function.