How to Fix Error 0x0006 Online Disconnect in Fatal Fury: City of the Wolves (PC/

[Administrator]

Error 0x0006 in Fatal Fury: City of the Wolves is a common online disconnect issue that forces players into offline mode after a match and can lower your Fair Play Score. While SNK has acknowledged the problem, they haven't released a definitive patch yet. However, several workarounds and solutions have helped many players

✅ 1. Check Server Status
Go to the official SNK Twitter/X or forums to confirm if servers are experiencing downtime or maintenance.

If servers are down, the error is likely temporary.

✅ 2. Switch to Wired Connection
Online fighters like Fatal Fury are sensitive to unstable networks.

Use an Ethernet cable instead of Wi-Fi to reduce latency and packet loss.

If you're using Wi-Fi, ensure you're close to the router.

✅ 3. Port Forwarding / NAT Type
Ensure the following ports are open on your router:

Protocol   Port Numbers
UDP   3478–3480
TCP   1935, 3478–3480

For PlayStation or Xbox users, also check your NAT Type — aim for NAT Type 1 (Open) or 2 (Moderate).

✅ 4. Use a VPN (Optional)
Some users report fewer disconnects when using a VPN with a stable U.S. or EU server, especially if their ISP throttles gaming traffic or routes inefficiently.

✅ 5. Disable IPv6
IPv6 sometimes causes handshake failures in online matchmaking.

Windows Instructions:

Open Network and Sharing Center

Click your active connection > Properties

Uncheck Internet Protocol Version 6 (TCP/IPv6)

Click OK and restart your PC

✅ 6. Adjust Firewall / Antivirus Settings
Add the game to the exclusion list of your antivirus and firewall.

Ensure these apps aren't blocking outbound/inbound connections:

FatalFury.exe

Steam.exe or EpicGamesLauncher.exe

✅ 7. Use DirectX 11 (PC only)
Some players have better online stability forcing the game to run in DirectX 11 mode:

In Steam:

Right-click the game in your Library > Properties

Under Launch Options, type:

diff
Copy
Edit
-d3d11
✅ 8. Reinstall the Game (Last Resort)
If the problem persists across multiple sessions and after patches, a fresh install has resolved the issue for some users.

⚠️ Current Status from SNK
As of August 2025:

SNK has confirmed that they're investigating Error 0x0006 as a priority issue. A full fix will likely be included in a future patch addressing online desyncs and matchmaking errors.