I would try to connect the GV camera on the regular network first with a small power adapter or poe injector, see if you are able to detect it with the GV tool. (don't plug it into the NVR)
I say this because the hikvision built-in POE doesn't play nice with 3rd party cameras...
When was the last time your GV camera worked?
I say this because the hikvision built-in POE doesn't play nice with 3rd party cameras...
When was the last time your GV camera worked?