Since its launch, Modern Warfare 3 has had its fair share of errors and issues that have become more annoying over time. Many players recently have encountered the “Failed To Start Matchmaking Error Code 14515” in the game. The error prompt is displayed while connecting to the multiplayer servers online. Since the error makes joining online sessions with friends almost impossible, it can be frustrating to see the prompt repeatedly.
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There are multiple reasons why the error may occur in MW3, ranging from server issues to temporary bugs. While there are no specific fixes for the issue available, there are some workarounds that players might find helpful.
How to Fix Failed to Start Matchmaking Error Code 14515 in Modern Warfare 3
The “Failed to Start Matchmaking” error (Error Code 14515) in MW3 can be caused by various factors, including network issues, outdated game files, or corrupted settings. Before proceeding, ensure you have installed any patches or updates available for the game. Once that’s done, here are some of the possible solutions and troubleshooting tips that players can try out.
Basic Troubleshooting
- Restart your game and console/PC. This can often resolve temporary glitches.
- Check for game updates. Make sure you have the latest updates for Modern Warfare 3 installed.
- Verify your game files. This will scan for and repair any corrupted game files.
- Restart your router and modem. This can refresh your internet connection.
Network Troubleshooting
- Use a wired connection instead of Wi-Fi. A wired connection is more reliable and can help avoid Wi-Fi interference issues.
- Port forwarding. Forward the following ports for Modern Warfare 3: TCP: 27015-27030, UDP: 3478-3479, 28875-28884.
- Change your DNS server. Try using a different DNS server, such as Google DNS (8.8.8.8) or OpenDNS (208.67.222.222).
Advanced Troubleshooting Tips
- Uninstall and reinstall the game. This is a last resort option but can sometimes fix the problem.
- Contact Activision Support. If you’ve tried all the above steps and are still having trouble, contact Activision Support for help.
Here are some additional resources that you may find helpful:
These links will be helpful if you are still not able to resolve error code 14515:
Things to Know
Whenever you face the Modern Warfare 3 error code 14515, these are the things you need to check first.
Check Server Status
Players can start by checking the status of MW3 servers on their dedicated platform. Sometimes, server outages or maintenance might occur while you try to join the online matchmaking. This may cause the error prompt to display, making it impossible to join the session.
For this, players can either check the official Activision Support page to know the status of the dedicated network or follow the official Call of Duty Twitter page. Additionally, you can also check out the downdetector page for COD.
Restart the Game
If the servers run fine, we recommend you close and relaunch Modern Warfare 3 again. The game might temporarily get bugged out, causing the 14515 error. Restart the game and try joining another session to see if the issue has been resolved.
Restart the Device
You can restart the game and restart your PC or console device to resolve the issue. This should clear out all the temporary files while also refreshing the system.
Check Internet Connection
The unstable internet connection can cause the ‘Failed to Start Matchmaking 14515’ error in MW3, making it unable to run multiplayer or zombie mode. Players can check if they have a good internet connection to their device. If not, you can always switch between networks to resolve the issue.
Contact Support
If the error persists, we suggest that you contact the official Modern Warfare 3 support. The devs will help you resolve any issues related to the error accordingly.
In addition to everything, you can also uninstall and reinstall the game to resolve the error. However, we suggest you keep it as a last resort to fix the error if none of the troubleshooting tips work.
That’s everything that could help you resolve MW3 error code 14515. If you find this guide helpful, go through our dedicated Modern Warfare 3 section on Gamer Tweak.