Modern Warfare 3 Hueneme Concord Network Error Fix

Call of Duty: Modern Warfare III is a 2023 first-person shooter video game that’s a sequel to 2022’s Modern Warfare II by Sledgehammer Games and Activision. Modern Warfare 3 has been affected by a variety of errors and bugs since it was launched including the startup crashes, lags, FPS drops, black screen issues, etc. Meanwhile, multiple reports coming out that the COD Modern Warfare 3 Hueneme Concord Network Error is troubling a lot of players.

The specific ‘Hueneme Concord’ error code isn’t new in the market for Call of Duty players because it did previously affect a lot of unfortunate players in the Modern Warfare 2 title. The same error is occurring to the MWIII 2023 edition players in the same way where the expected reasons are related to the internet connectivity, Activision server issues, multiplayer connection conflicts, outdated game or network drivers, corrupted game files, antivirus blocking, and more.

Modern Warfare 3 Hueneme Concord Network Error Fix

Modern Warfare 3 Hueneme Concord Network Error Fix

If we take a quick look at this particular error code, it basically says “Connection Failed. Networking failed to start [Reason: HUENEME CONCORD]”. This kind of issue mostly appears whenever there is a connection-specific scenario that comes into the light similar to joining a match lobby due to multiple potential reasons as we’ve already mentioned above. But that’s a temporary issue just like other connectivity errors. However, if you’re experiencing it often, ensure the game servers are optional.

Here we’ve shared with you a couple of possible workarounds that should come in handy. Make sure to follow all troubleshooting methods until the problem has been fixed. So, without further ado, let’s jump into it.

1. Reboot Your PC

First of all, you’ll need to restart your computer before doing any other workarounds to easily refresh system glitches or cache data issues. Even though this trick won’t gonna help everyone, it’s recommended to perform it once. Just go to the Start menu > Click the Power icon > Select Restart.

2. Run Modern Warfare 3 as an Administrator

You should run the Call of Duty Modern Warfare III game application as an administrator on Windows to allow the system user account control permission. Without having permission, some applications might not work properly. To do this:

  • Right-click on the COD: MWIII application on your PC.
  • Select Properties > Click on the Compatibility tab.

  • Enable the Run this program as an administrator option.
  • Now, click on Apply > Select OK to save changes.
  • Once done, run the game to check for the issue again.

3. Check for Activision Online Services

You can also try checking the Activision Online Services by following the steps below to ensure there is no issue with the server status. Sometimes server status regarding issues might also trouble you a lot with the multiple in-game challenges.

  • Visit the Activision Online Services page to check it.
  • Select the drop-down menu > Click on Call of Duty: Modern Warfare III from the list.
  • If you’re seeing All Platforms ONLINE then it indicates there is no issue with the game servers at that moment.
    • You can also click on the Refresh link to manually refresh the page.

However, if you’re seeing server issues then wait for a couple of hours to check for the same.

4. Update COD Modern Warfare 3

Sometimes an outdated game patch version can trouble you a lot due to stability issues or bugs. It’s recommended to check for the game updates manually by following the steps below.

  • Open
  • Click on Game Library > Choose Modern Warfare III.
  • Now, click on the cog wheel icon.
  • Select Check for Updates.
  • Make sure to download & install the update, if available.


  • Open Steam > Go to Game Library.
  • Right-click on Modern Warfare III.
  • Select Properties > Click on Updates.
  • Head over to Automatic Updates.
  • Select Only update this game when I launch it.
  • It’ll automatically install updates whenever available.

5. Scan and Repair the Game Files

Sometimes corrupted or missing game files on the PC might also trouble you while starting the game. It’s always better to verify and repair the game files by following the steps below on your PC to avoid errors.

  • Open > Click on Modern Warfare III.
  • Select the Cog Wheel icon next to the Play button.
  • Now, select Scan and Repair > Wait for the repair to complete.


  • Open the Steam client > Go to Library.
  • Right-click on Modern Warfare III in your library.
  • Go to Settings and select Properties.
  • Click on Local Files > Select Verify integrity of game files.
  • Wait for the process to complete.

6. Check Your Internet Connection

It’s suggested to check your internet connection at your end to ensure there is no network issue or not. A slow or unstable internet connection can basically cause multiple issues whatsoever. If you’re using a wired (ethernet) connection, try using a wireless (Wi-Fi) connection or vice versa to check for the issue. You can also try using a different network to cross-check it. Additionally, you can try power cycling the Wi-Fi router to check if the networking glitches have been fixed or not.

7. Turn Off Windows Firewall

Windows Firewall basically prevents unauthorized ongoing connections from the PC to online servers. You can try turning it off temporarily to check for the issue again.

  • Open the Start Menu > Search and open Windows Defender Firewall.

  • Now, click on Turn Windows Defender Firewall on or off from the left pane.

  • Turn Off all the Private, Domain, and Public Network Settings options.
  • Finally, click on OK to save changes.

8. Disable Antivirus Protection

You can also try turning off the antivirus protection on your PC to ensure there is no antivirus software blocking the game files from running properly.

  • Press the Win+I keys to open Windows Settings.
  • Click on Update & Security > Click on Windows Security from the left pane.
  • Now, click on the Open Windows Security button.
  • Go to Virus & Threat Protection.
  • Click on Manage Settings.
  • You’ll need to Turn Off the Real-time Protection toggle.
  • If prompted, click on Yes to proceed further.

Note: If you’re using any other third-party antivirus program on your PC then just turn off the real-time protection feature.

9. Flush the DNS Cache

DNS cache data can get stored over a period of time on the PC and may cause several issues with the network connectivity sometimes. It’s better to flush DNS manually to check if the login queue error has been fixed or not.

  • Open the Start menu > Search Command Prompt.
  • Right-click on Command Prompt > Click on Run as administrator.
  • Click on Yes (if prompted) > Copy-paste the following command and hit Enter:
ipconfig /flushdns

  • You’ll receive the Successfully flushed the DNS Resolver Cache. message.
  • Next, execute the following command to register DNS:
ipconfig /registerdns
  • Then execute the following command to release the ipconfig:
ipconfig /release
  • Now, execute the following command to renew the ipconfig:
ipconfig /renew
  • Then reset Winsock by performing the command below:
netsh winsock reset
  • Close the command prompt and restart the PC to apply changes.

10. Disable Teredo Network Protocol

Teredo is a tunnelling protocol that allows IPv6 connectivity to a computer with only an IPv4 connection. Sometimes it can trouble you a lot by following the steps below:

  • Open the Start menu > Search for Xbox Networking to check whether Teredo is enabled or disabled.
  • Search for cmd > Right-click on Command Prompt.
  • Select Run as Administrator.
  • If prompted, click on Yes to proceed.
  • Now, copy-paste the following command & hit Enter to disable Teredo:
netsh interface Teredo set state disabled
  • Once disabled, check for the game error again.

11. Update Network Drivers

You should try updating the network adapter driver on the PC to ensure there is no conflict happening with the networking connectivity. Sometimes your internet connection might have a good signal or speed but the network adapter may trouble you due to driver-related issues. To fix it:

  • Press the Win+X keys to open the Quick Link Menu.
  • Click on Device Manager from the list.
  • Now, double-click on the Network adapters category to expand the list.
  • Then right-click on the specific network device.

  • Select Update driver > Choose Search automatically for drivers.
  • If there is an update available, it’ll automatically download and install the latest version.
  • Once done, make sure to reboot your computer to change the effects.

12. Try Using a VPN

It’s highly possible that somehow a VPN (Virtual Private Network) service can help in achieving server-restricted content or geo-restricted access. But sometimes it can trouble you with the server connectivity in several regions. So, if you’re already using a VPN service to play MWIII then make sure to turn it off temporarily to check if the problem has been fixed or not.

13. Change the DNS Addresses

If none of the workarounds did come in handy then make sure to use the Google DNS address manually on the PC to fix server connectivity or matchmaking issues with your active internet properties. You can try following the steps below to check for the issue again.

  • Press the Win+R keys to open the Run dialogue box.
  • Now, search and open Control Panel.
  • Click on Network and Internet > Select Network and Sharing Center.
  • Go to your Connections to select Ethernet, Wi-Fi, etc what you’re using.
  • Next, click on Properties > Double-click on Internet Protocol Version 4 (TCP /IPv4) to open a new window.
  • Click on Use the following DNS server addresses.
  • Ensure to input as a Preferred DNS server.

  • Enter as the Alternate DNS server.
  • Click OK to confirm the changes.
  • Once done, reboot the PC to change effects immediately.

That’s it, guys. We assume this guide was helpful to you. For additional queries, you can comment below.

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