COD Advanced Warfare Error Code Fixes

Call of Duty: Advanced Warfare can show a variety of error codes on PC, PlayStation, and Xbox, but most are network or file-corruption issues that you can fix by restarting your router, verifying game files, or adjusting your NAT type. This article explains the most common Advanced Warfare error codes, what they mean, and the step-by-step fixes that actually resolve them.

What Causes Advanced Warfare Error Codes?

Advanced Warfare, released in 2014, relies on peer-to-peer connections and online services that can fail for several reasons. The most frequent triggers are:

• Corrupted game cache or installation files
• Strict NAT type blocking matchmaking
• Outdated game patch or console firmware
• Server outages on Activision’s side
• ISP-level blocks or unstable Wi-Fi

Knowing the cause helps you pick the right fix. For example, a NAT-related error won’t be solved by reinstalling the game, and a corrupted file error won’t be fixed by port forwarding.

Common Error Codes and Their Meanings

Players encounter several recurring codes. Here are the ones you’re most likely to see and what they indicate:

• Error Code 2 – Usually a network timeout or server connection failure. Often appears when trying to join a lobby.
• Error Code 3 – Related to the game’s online services being unavailable, often due to server maintenance or an outage.
• Error Code 4 – Indicates a problem with your connection to the matchmaking server, frequently caused by a strict NAT.
• Error Code 5 – A catch-all for data corruption or failed updates. Verifying files is the first step.
• Error Code 6 – Typically a DLC or map pack mismatch between you and the host.
• Error Code 7 – A less common code that often points to account authentication issues.

These codes are not officially documented by Activision, so the meanings above are based on player reports and common troubleshooting patterns.

How to Fix Network-Related Error Codes

If you see codes like 2, 3, or 4, the problem is almost certainly your network connection to the game servers. Follow these steps in order:

1. Restart your router and console/PC. Power cycle everything, wait 2 minutes, then try again.
2. Check if the servers are down. Visit the official Activision support page or a site like Downdetector to see if others are reporting issues.
3. Switch to a wired connection. Wi-Fi can cause packet loss and timeouts. Plug in an Ethernet cable if possible.
4. Change your DNS to Google’s (8.8.8.8 and 8.8.4.4). This can bypass ISP-level DNS problems.
5. Open the required ports. For Advanced Warfare on PlayStation, Xbox, and PC, forward UDP ports 3074, 3075, 3076, and TCP port 3074.
6. Enable UPnP in your router settings if you can’t manually forward ports.

After each step, test the game. Most network errors resolve after the first two steps.

How to Fix File Corruption and Update Errors

Errors like 5 and 6 often stem from corrupted game files or mismatched DLC. Here’s how to fix them on each platform:

• PC (Steam): Right-click the game in your library, select Properties → Local Files → Verify Integrity of Game Files. This will re-download any missing or damaged files.
• PC (Microsoft Store): Go to Settings → Apps → Advanced Warfare → Advanced Options → Reset or Repair.
• PlayStation: Delete the game and reinstall it. Be sure to back up your save data to the cloud first. Also, check for system updates.
• Xbox: Press the Xbox button, go to My Games & Apps, highlight Advanced Warfare, press the Menu button, and select Manage Game & Add-ons. Then clear the reserved space and restart.

If you have DLC installed, delete and re-download it as well. A mismatch between your DLC and the host’s is a common cause of error 6.

NAT Type and Matchmaking Issues

Advanced Warfare is sensitive to your NAT type. A strict or moderate NAT can prevent you from joining lobbies or cause random disconnections. To check your NAT:

• PlayStation: Settings → Network → View Connection Status.
• Xbox: Settings → Network → Network settings → Test NAT type.
• PC: There’s no built-in check, but you can see it in the game’s network menu.

If your NAT is strict, the fixes are:

1. Enable UPnP on your router.
2. Forward the ports listed above.
3. Put your console/PC in the DMZ (only if you’re comfortable with the security implications).
4. Contact your ISP if your NAT is always strict despite these steps.

An open NAT is the goal. It allows you to connect to more players and reduces error codes related to matchmaking.

Advanced Troubleshooting for Persistent Errors

If the standard fixes don’t work, try these deeper steps:

• Clear your console’s cache. On Xbox, hold the power button for 10 seconds to do a full shutdown. On PS4, turn it off completely and unplug it for 30 seconds.
• Reinstall the game completely. This is the most thorough fix for corrupted files. Make sure you have your account credentials handy.
• Check for system updates. An outdated console OS can cause compatibility issues.
• Try a different profile. If the error only happens on one account, the profile data may be corrupted.
• Use a VPN on PC. Some ISPs throttle or block gaming traffic. A VPN can bypass this, but it may increase latency.

If none of these work, the problem might be on Activision’s side. Wait a few hours and try again.

Preventing Future Error Codes

Once you’ve fixed the issue, take these steps to avoid it happening again:

• Keep your game and console firmware updated.
• Use a wired connection whenever possible.
• Set a static IP for your console/PC so port forwarding stays consistent.
• Periodically verify game files on PC, especially after updates.
• If you have DLC, make sure everyone in your party has the same maps installed.

These habits reduce the chance of encountering error codes in the future.

Frequently Asked Questions

Why does Advanced Warfare keep kicking me out of lobbies?

This is usually a NAT or connection stability issue. Check your NAT type and switch to a wired connection. If that doesn’t help, forward the necessary ports or enable UPnP on your router.

Can I fix error code 5 without reinstalling the game?

Yes, on PC you can verify the game files first. On consoles, you can try clearing the cache or deleting the reserved space. Reinstalling is the last resort, but it’s the most reliable fix for corrupted data.

Is error code 3 always a server problem?

Not always, but it’s the most common cause. Check the official server status first. If servers are up, try restarting your router and console. If the error persists, your ISP may be blocking the connection.

Do I need to open ports for Advanced Warfare on PC?

Yes, opening the same ports as consoles can help. Even though PC uses Steam, the game still uses standard online ports. Forward TCP 3074 and UDP 3074-3076 to your PC’s local IP.

Why does the error code appear only when I play with friends?

This often happens when one player has a strict NAT or when there’s a DLC mismatch. Make sure everyone has the same DLC installed and that the party leader has an open NAT.

Will a VPN fix my Advanced Warfare error codes?

It can, if the issue is ISP-related throttling or blocking. However, a VPN may increase ping. Try other fixes first, and only use a VPN as a last resort.

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