NVR - Green light but no video

[kd4e]

New Empiretech/Dahua NVR16CH-16P-2AI.

I have 4 cameras working - 4 others light up green in Device List - but show no images.

Of the 4 working cameras:

One is a Reolink cam (wireless to a router in relay mode, which is then wired to the main switch (the NVR is plugged into the main switch). 192.168.x.x

One is a Reolink Doorbell cam - wired directly to the NVR. 10.x.x.x

One is an Empiretech bullet cam wired directly to the NVR. 10.x.x.x

One is a Loryta 'eyeball' cam wired directly to the NVR. 10.x.x.x

The other 4 are Reolink cams (that were working on the 8-ch model of the same series NVR):

One Reolink is wired directly to the NVR. 192.168.x.x

One Reolink is wired to a router in relay mode, which is then wired to the main switch (the NVR is plugged into the main switch). 192.168.x.x

Two go to a switch then to the main switch (the NVR is plugged into the main switch). 192.168.x.x

Note 1: The NVR is set to set the camera passwords to the same as the NVR. But this only appears to happen to those with 10.x.x.x. IP's.

I needed to reset the three cams with the 10.x.x.x IP's. Might I have success doing the same with the other cams?

 

[bigredfish]

I cant say about the Reolink's. On a Dahua camera plugged into the NVR PoE port with a 10.1.1.x IP yes, a factory reset (holding down the little black button inside the SD card door while powered, will reset them and allow the NVR to assign the IP and the camera will adopt the NVR credentials. I dont think that will work if they are ona switch on your LAN

 

[TonyR]

One is a Reolink Doorbell cam - wired directly to the NVR. 10.x.x.x

One Reolink is wired directly to the NVR. 192.168.x.x

Please clarify.....how can the doorbell camera be in the 10.x.x.x subnet and the other Reolink camera be in the 192.168.x.x subnet if both are "wired directly to the NVR" ?
This is assuming it's a POE NVR and by "wired directly to the NVR" you mean that the camera is plugged into one of the NVR's POE ports.

 

[kd4e]

Please clarify.....how can the doorbell camera be in the 10.x.x.x subnet and the other Reolink camera be in the 192.168.x.x subnet if both are "wired directly to the NVR" ?
This is assuming it's a POE NVR and by "wired directly to the NVR" you mean that the camera is plugged into one of the NVR's POE ports.

One is a Reolink cam (wireless to a router in relay mode, which * the relay router* is then wired to the main switch - the NVR is also plugged into the main switch). 192.168.x.x (Port 8000)

 

[bigredfish]

Show a screen grab of your camera registration page

 

[kd4e]

Show a screen grab of your camera registration page

This?

 

[bigredfish]

Yes, so they all show green...hmm that shows they are communicating and credentials are accepted

The NVR IP is 192.168.50.X yes?

hmmm Other than the ports I dont know off the top of my head

 

[kd4e]

Yes, so they all show green...hmm that shows they are communicating and credentials are accepted

The NVR IP is 192.168.50.X yes?

hmmm Other than the ports I dont know off the top of my head

Yes re. the NVR IP.

I'll try resetting the one that's wired directly and see what happens.

It's also odd that one Reolink connected to a relay-router works - but another one, connected to a different relay-router (same brand and model, and was working before), doesn't.

 

[kd4e]

OK, after about a hundred attempts - replacing cables, testing with the Reolink app, changing the IP, resetting, etc. This camera is only going to be viewed by the NVR if it's connected to the main switch (in common with the NVR - both also share the main router as well). No matter what, the NVR refuses to recognize it, directly. Time to surrender.

On to the next camera ...