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Standalone Network Interface Card Troubleshooting (WinOS)

Standalone Network Interface Card Troubleshooting (WinOS)


Affected Roles:  Administrator

Complexity:  High

Last Edit:  June 10, 2020


NIC Issues

It is recommended to test the Local Area Network (LAN) communication when encountering connectivity issues with your DVR or NVR. This is commonly done by trying to ping the unit over the network. However, an uncommon issue that can occur is if the target device’s Network Interface Card (NIC) is no longer working properly.

This article will outline how to test a NIC for a VMAX standalone unit using a Windows OS computer.

Supported/Affected Devices

  • VMAX Series (Legacy)
  • VMAX 480 Series
  • VMAX 960H Series (Core/Flex)
  • VMAX Flex Series
  • VMAX A1 Series (2.1 MP)
  • VMAX A1 Plus Series (5 MP)
  • VMAX IP Plus
  • DW Compressor Series

Network Connections

Before testing the NIC of the standalone unit, make sure that the issue is not being caused by network errors such as blocked ports or IP address conflicts.

For more information:

DVR Network Troubleshooting

VMAX IP Plus Network Troubleshooting

Checking the Network Card

If the recording unit cannot be reached over the LAN and you have determined that the issue is not being caused by network settings, perform the following to test the Network Interface Card (NIC):

  1. The NIC can be accessed from the rear panel of the recording unit.

Connect a computer directly to the LAN port of the DVR or NVR with Ethernet cable.

Note:  This process cannot be performed over Wi-Fi.

  1. Set the computer’s IP address to use the same IP address scheme as the DVR or NVR.

To do so, locate and open the Control Panel of the computer, then select Network and Internet.

Next, select Network and Sharing Center.

  1. Select Change Adapter Settings.

The Network Connections window will display.

Right-click on your computer’s Ethernet adapter, then select Properties.

  1. Select Internet Protocol Version 4 (TCP/IPv, then click the Properties button.

  1. From the Internet Protocol Version 4 (TCP/IPv4) Properties window, select Use the following IP address.

In the IP address box, enter an IP address on the same network scheme as the DVR or NVR. The IP information of the DVR or NVR can be found in the Network menu of the recording unit.

In the Subnet mask box, use

Leave the Default gateway setting blank.

Click the OK button to apply the settings.

  1. After configuring the settings, open the Command Prompt.

Use ping <IP Address>, then press the enter button to test the NIC.

If you do not receive replies back during the ping command, there may be an issue with the NIC.

Note:  Use the IP address of the recording unit when using the ping command.

7) Remember to change the computer back to its DHCP setting after you have finished testing.

If you suspect that there is an issue with the NIC of the DVR or NVR, please contact Digital Watchdog Technical Support for further assistance.

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  • 11-Jun-2020