Hikvision NVR IP Address Conflicts?

[Fattony]

Hi

I went to a business park today, 4 x IP cameras connected to a PoE switch, 1 x cat 5 link from switch to NVR LAN port and 1 x cat 5 link from switch to 4G router.

Defaulted admin password no problems, upgraded the firmware of NVR and from then on it wouldn’t communicate to the cameras, these were not set as plug & play as they were connected to the switch.

I ended up defaulting the NVR but still the cameras would not communicate, in the end I had to plug the cameras into the NVR camera ports and link the LAN port to the 4G router bypassing the PoE switch completely.

Attached is the network setting page, did I set anything wrong?

The NVR takes an IP address and I think it distributes a separate IP address for the cameras via the NIC, I tried to apply these settings and it kept saying there was a conflict with the NIC but I’m not sure what’s wrong with it.

Apologies for the long post and thanks in advance

 

[Dan]

Hi @Fattony

The issue you have is that the local network range of the site (192.168.254.xxx) is the same as the NVRs internal subnet/NIC range (192.168.254.xxx).

These IP ranges cannot be the same, so in the NVR network settings you will need to manually change the NIC IP to a different range (e.g. 192.168.253.1 or 192.168.250.1), once you've done that you will either need to hard reset each camera and plug them back into the PoE ports so they can be assigned IP addresses on the new subnet range.

Alternatively, if you do want the cameras on a separate PoE switch and you know the passwords used by the cameras, you could move them back to the PoE switch and now that the local network & NVR subnet ranges are no longer clashing you should be able to manually add those cameras to the NVR as you had originally planned.

I think the clashing IP ranges was also why the cameras wouldn't add when connected to the separate switch in the first place, the NVR was getting confused as to what was its internal network and was the local network.

 

[Fattony]

Thanks for the advice, this was an existing setup but I managed to lose the images during the firmware upgrade.

The cameras plugged into the switch wet 192.168.254 range so I assumed the NVR would need to sit on that range.

When I return I’ll see if I can get it back how it was