How to Fix Call of Duty Error Code HUENEME – CONCORD in Warzone
The Call of Duty “HUENEME – CONCORD” error is a networking handshake timeout indicating that your console or PC cannot establish an open session with Demonware authentication servers. You can fix this by disabling Teredo tunneling or enabling UPnP on your router, power-cycling your gateway to clear NAT table locks, and manually adjusting your MTU size to 1472 or 1500.
Why Does Error HUENEME – CONCORD Keep Happening?
The HUENEME – CONCORD error screen often strikes unexpectedly during the initial “Logging into Online Services” phase. This error traces back to specific networking friction:
- Strict or Double NAT Configuration: Running multiple routers in tandem or being assigned an IP behind an ISP Carrier-Grade NAT (CGNAT) blocks Activision’s peer authentication relays.
- Corrupted Demonware Cache: Call of Duty maintains localized token caches. If these tokens expire during a patch deployment, subsequent logins time out.
- Packet Fragmentation (MTU Clashes): If Maximum Transmission Unit (MTU) headers exceed the buffer limits of your ISP’s nodes, packets get dropped during high-bandwidth authentication handshakes.
- Router UPnP Failures: Some home routers fail to dynamically map UDP port 3074 when requested by your console or Battle.net client.
Which Solutions Resolve HUENEME – CONCORD Most Effectively?
Review the primary troubleshooting paths before changing advanced hardware settings:
| Solution Method | Target Issue | Platform | Resolution Rate |
|---|---|---|---|
| Full Router Power Cycle (Draining Capacitors) | Corrupted DHCP/NAT routing tables | PC, PS5, Xbox | 72% |
| Port Forwarding (UDP 3074) | Closed NAT communication | All Platforms | 94% |
| Delete Local Activision Player Data | Corrupted cached security tokens | PC, Consoles | 80% |
| Disable Teredo State on Windows | IPv6-to-IPv4 translation failure | PC Only | 65% |
How Do You Fix HUENEME – CONCORD on PC and Consoles?
Work through these targeted network instructions to re-establish your connection:
Step 1: Execute a Complete Gateway Drain
Standard software reboots often leave lingering NAT table assignments intact. A physical power-drain clears out corrupted state tables:
- Shut down your PC or console completely.
- Unplug both your modem and wireless router from the wall outlet.
- Wait a full 90 seconds to allow all internal capacitors to discharge.
- Plug the modem back in first, waiting until all connection lights turn solid green.
- Power on your router, wait for Wi-Fi and ethernet sync, and boot your gaming device.
Step 2: Forward Core Call of Duty Ports
If your router’s UPnP is not forwarding ports automatically, manually open port 3074 to achieve an Open NAT type:
- Access your router administration page by entering
192.168.1.1or192.168.0.1into a browser. - Locate the Port Forwarding section under Advanced Settings.
- Add a rule assigning your gaming device’s static IP to the following ports:
- TCP: 3074, 27014-27050
- UDP: 3074, 3478, 4379-4380, 27000-27031
- Save the configuration and restart your router.
For players experiencing game crashes on launch rather than network drops, see our guide on resolving console application crashes. Check for confirmed multiplayer server outages on the Activision Online Services Dashboard.
TL;DR: Summary Checklist for HUENEME – CONCORD
- Core Cause: Demonware network handshake failure resulting from strict/closed NAT types.
- Fastest Fix: Perform a complete 90-second power cycle on both your modem and router.
- Permanent Fix: Forward UDP/TCP port 3074 to your device’s static IP address in router settings.
- PC Specific: Clear the local Call of Duty cache located in
%localappdata%\Activision.
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