Applies to: ARN, QRN, XRN, PRN, and HRX series recorders

In an effort to maintain standards, Hanwha uses the web UI for all knowledge base 
articles pertaining to product configuration. Open Chrome, enter the IP Address 
of your device into the URL bar, and click Enter. If you are not using the web UI 
to configure your device, please refer to the user manual for your product. 

Issue Summary

IP conflicts in an NVR can occur for multiple reasons. For example, the network interface designated in the NVR as Network 1 has an IP already assigned to a device currently on that physical network. Another issue that can crash a network is enabling the DHCP Server on Network 2 (Viewer). 

This article explains how to correct issues.

Resolution

Network IP Address

1. Navigate to Setup > Network > Interface > Network on your NVR.
   
   

   NOTE: The radio button for Default Gateway should normally be set to Network 2.

2. Next to Network 2 (Viewer), click Setup.
   
   If your IP Type is set to DHCP on Network 2 (Viewer), you are grabbing an address automatically from the client's network. If you plan to connect to your NVR remotely, you need to statically assign an IP to Network 2 (Viewer). Network 1 (Camera) also needs a statically assigned IP. This sets up base IP range for the camera network. 
    

   IMPORTANT: Never put Network 1 (Camera) and Network 2 (Viewer) into the same 
   range.
   
   For example, the two IP addresses are in the same range because their subnet 
   mask is the same class C 255.255.255.0 mask. If the first three sets of 
   numbers are the same with this type of mask, you are in the same IP range. 
   This will cause both networks in the NVR to crash continuously.
   
   Network 1 (Camera)
   192.168.1.100
   255.255.255.0
   
   Network 2 (Viewer)
   192.168.1.200
   255.255.255.0

3. If your Network 2 (Viewer) IP address is conflicting with anything on the client's network, change the IP address to an unused IP address.
    
4. If Network 1 (Camera) is conflicting with anything on the camera network, correct the IP, Subnet, or gateway accordingly. 
    
5. Click OK to save the changes.
   
   

DHCP Server

NOTE: While enabling DHCP Server on Network 2 (Viewer) is not technically an
IP conflict, you are handing out addresses on the client's network. This can 
cause major outages on some networks. There will be very few usage cases where 
DHCP Server needs to be enabled on Network 2 (Viewer).

1. Navigate to Setup > Network > DHCP Server > Network.
    
2. Next to Network 2 (Viewer) click Setup.
   
   
    
3. Select Stop from the Status drop-down menu.
    
4. Click OK.