Hi @scott1981 

Thanks for posting in our business forum.

You might wanna confirm the VPN tunnel is up and continuous.

Hi @scott1981 

Thanks for posting in our business forum.

scott1981 wrote

  @Clive_A 

 

Thanks for getting back. I confirm the vpn is continuous. In case of interruption, does the NVR try to reconnect to the camera? When i see the camera is disconnected from the NVR, if i go to the ping section in the web ui I am able to ping the camera.

 

In the event of temporary disconnection, doesn't thr nvr try to reconnect?

 

Thanks 

Zero loss from the continuous test?

Of course, it reconnects. Periodically without you sense it.

The session for the live feed is not "continuous". It is a minor session and is recreated automatically to reestablish the connection.

In networking, there is no "continuous" session. They are all minor sessions forming up a long session which in your GUI you see a continuous live.

I think it could be the VPN tunnel as it is the foundation of the overall NVR transmission. So I would like to troubleshoot this part first.

Hi @scott1981 

Thanks for posting in our business forum.

scott1981 wrote

  @Clive_A 

 

After doing some troubleshooting here it what I found:

 

1) Disconnect VPN

2) Verify that IPC appears as Not Connected

3) Reconnect VPN

4) After 5 minutes VPN is back up, IPC still shows as Not Connected

5) NVR is able to ping IPC IP through the tunnel.

6) Remove/Re add the camera and it works again

 

If NVR is able to ping the camera after restoring connectivity, shouldn't it appear as Connected, meaning the NVR tried to reconnect?

 

Thanks,

 

Still seems to be the reestablishment issue. So, when the tunnel is down, the connections between the NVR and the camera are lost. The connection seems to be initiated from the camera after they are added to the camera.

Does your camera support an IP address of the NVR? Input that IP so that the camera can constantly request the reestablishment to the NVR.

For example, the client should request the connection. The controller(like the NVR) allows the connection in but it does not repeatedly start the connection. It listens but never proactively start one.

It should discover but not only establish the connection when you confirm. This is how the controller works.

By setting up the camera to an NVR IP is to set them to constantly connect to a server.

I think you can verify this process by Wireshark. Since I don't have the test environment, but it indeed looks like a problem that we experience on a controller.

The best way is to keep the connection up. If they are down, and you expect they can auto-recover, bypass the VPN. Use the port forwarding. Or set the camera to connect to a server.

Hi @scott1981

I will also bring my colleague to take a look at this. They'll check this with the test team and learn about what could be wrong in this case.

Hi @scott1981 

Thanks for posting in our business forum.

scott1981 wrote

  @Clive_A 

 

Quick update, I readded the camera using port 80 instead of 443, and now it reconnects after NVR reboots. Is this normal behavior? Camera is a hikvision model, with self signed certificate (factory certificate).

 

Thanks

Possible to have a remote session? Let me know if you need to investigate this further or not.

The test team did not reproduce the described issue. We cannot locate the reason so a remote debug would be helpful.