Modern Warfare 3 Troubleshooting Guide

Modern Warfare 3 may not have scored all the good reviews but it still managed to sell 6 million copies to date and it’s just the launch day. If you bought the game and are experiencing any technical difficulties in running Modern Warfare 3 smoothly on your console or PC, refer to our Modern Warfare 3 troubleshooting guide for the workarounds to fix these issues.

Modern Warfare 3 Troubleshooting

Playstation 3 and Xbox 360 – Can’t Connect To Online Games
Check the status of the service. Disable firewall/security program and re-run the game. Port forward 81, 3074, 3075, 3478, 3479 (UDP) and ports 80, 443, 3074, 5223 (TCP) for Playstation 3. Port forwarded UDP: 3658 for smooth communication. Put your PS3 into DMZ of your router.

If you still can’t connect, disconnect your router and try again. You may get the error “The game session is no longer available.” Enabling UPnP, forwarding port 3074, or placing your Xbox 360/PS3 in your router’s DMZ to resolve this issue. If it’s PS3, try deleting PS3 browser cache and browser’s cookies.

Prestige Token Not Showing
Primarily a server issue, will be fixed soon! If you still don’t see your prestige token, contact Activision.

Can’t Connect To Servers
If you can’t connect to Modern Warfare 3 servers, you can try the following workarounds:

  • Check Call of Duty Elite status.
  • Restart your console and try again.
  • Disable any firewall and security programs.

Forward the ports below:

Xbox 360

  • TCP: 80,53,3074,
  • UDP: 88,53,3074

Playstation 3

  • TCP: 80, 443, 5223, 3074
  • UDP: 3074,3478,3479


  • TCP: 27014-27050, 3074
  • UDP: 27000-27015, 27015-27030,3074

Can’t Link Your Gamer Tag or PSN ID ?
You can try clearing your browser cookies and cache. Or you can use a different browser to log into Call of Duty Elite.

How To Link or Unlink Your Accounts

  • To unlink your current console account you need to go to the login bar at the top of the page and click on your gamertag. Once you are in your profile page go down to the “Consoles” section.

You can unlink your console account by clicking the Tick sign next to the console account you wish to unlink and it will be unlinked from your Call of Duty profile. At this point you can link a different console account to your profile by clicking the + sign next to the Xbox Live account.

Wrong Xbox Live Gamertag Linked
It may because you are logged into a different live account in your browser in the background of your browser. Clear the cookies before linking your gamertag to resolve this issue.

How To Link Facebook account to Call of Duty Elite?

  • Log in to your Call of Duty ELITE account.
  • Left click on your gamertag on the bar at the top right.
  • Select “Profile”.
  • Left click on the Plus sign next to “Link your Facebook Account”.
  • Allow Facebook access to your ELITE account.

How To Link Call of Duty Elite to Youtube
To link your YouTube account to the Call of Duty ELITE service, navigate to the Career page and click on the Vault anchor link on the right. There, you should see a “Link with YouTube” button. Clicking this will redirect you to YouTube and ask you to sign in.

Now, all you have to do is click “Allow Access”, and you’ll be taken back to the Call of Duty ELITE site. Now, every time you upload a video from in-game, your videos will be displayed shortly afterwards in your “Vault” section on the website.

Rank Reset
If your stats are reset, Modern Warfare 3 will restore them using the previously stored backup. You may lose all the progress you made in your last play-through of the game.

Crash and Freeze During Install
If you experience any crash or freeze when installing Modern Warfare 3, follow the workarounds below to resolve these errors:
Set your desktop to a resolution of 1024×768, 32 bit True Color.

For Windows XP

  • Right-click on your desktop and select Properties.
  • Click the Settings tab.
  • Set your screen area to 1024×768.
  • Set the colors to Highest (32 bit).
  • Click Apply and OK.

For Windows Vista\Windows 7

  • Right-click on your desktop and select Personalize.
  • Click on Display Settings
  • Set the resolution slider to 1024X768
  • Set the colors to Highest (32 bit).
  • Click Apply and OK.

Alternatively, close down all the applications before you attempt to install Modern Warfare 3.

Modern Warfare 3 Crashes and Freezes When Launched
Update your graphics card drivers – AMD and Nvidia. You can also try the workarounds above to resolve these crashes and stuttering issues.

When I launch the game I get the error “This game is currently unavailable”.
Logout of the Steam and log back in to resolve this error.

Modern Warfare 3 Crashes and Freezes When Playing
Apart from the workarounds above and general troubleshooting, you can turn hardware acceleration for your sound card to basic to fix the random crashes and sudden freezes.

  • Click the Start button > Settings > Control Panel.
  • Double-click on the Multimedia icon.
  • Select the Audio tab.
  • Click on the Advanced Properties button in the Playback section.
  • Click on the Performance tab.
  • Reduce the Hardware acceleration to Basic, the 2nd notch from the left.
  • Click Apply and then OK 2 times. Run the game now. Don’t forget to turn the acceleration back up to restore the high-end features for your sound card when using other applications.

Windows XP

  • Click the Start button > Settings > Control Panel.
  • Double-click the Sounds and Audio Devices icon.
  • Click the Volume tab.
  • Under Speaker settings, click the Advanced button.
  • Click the Performance tab.
  • Reduce the Hardware acceleration to Basic, the 2nd notch from the left.
  • Click Apply and then OK 2 times. Run the game now. Don’t forget to turn the acceleration back up to restore the high-end features for your sound card when using other applications.

How To Open Your Nat To Solve No Sync In Co-op
Your router address should be something like this just copy and paste into your browser then find where your router stores your NAT/PAT settings they are usually in the advanced section of the http interface.

TCP: 3074
TCP: From 27014 to 27050

UDP: 3074
UDP: From 27000 to 27030

Add a new rule, then in the pull down menu you should have something like “create new rule” then just add the numbers in external and internal ports, then the protocol TCP or UDP, then to what computer on your network should use them, reboot your computer and the router and your MW3 should be Nat Open after that. Thanks chuba2 for explaining it in detail.

Modern Warfare 3 Low Textures Graphics Fix
If you are experiencing low textures quality when playing Modern Warfare 3, use Native Image Quality in advanced graphics options and you will see textures quality improved over whatever settings you were using before. There are five settings here – Low, Medium, High, Extra and finally Native. Remember to switch to Native quality for good graphics.

Modern Warfare 3 FOV Fix
If you don’t like the default FOV setting in Modern Warfare 3, use the Widescreen Fixer to change the FOV and choose correction monitor resolution.

Mouse Sensitivity Changes Temporarily
If your mouse sensitivity changes temporarily when playing Modern Warfare 3, close all the applications running in the background to fix the issue.

Can’t Find Server Browser or Dedicated Server Option
Sadly, you have to enable these Dedicated Server Options first before they become visible.

How To Join a Dedicated Server

  1. Enable the server browser in the options menu. Options > Dedicated Server.
  2. When you enable that option, you will have servers available in the multiplayer menu.
  3. Select Servers and find the one with low ping.
  4. Hit Connect to join your favorite server.

Crash To Desktop
Often occurs due to any missing file – in this case, it has been found that Verifying the game cache in Steam fixes the problem.

DirectX Has Encountered Unrecoverable Error
Same old, same old. You can try Modern Warfare 2 fix for this issue. It will work since both games have been developed using the same engine.

Go to ‘Control Panel’ > Display > Screen Resolution > Select Advanced Properties > Click on the Troubleshooting Tab (It may not be clickable. In that case, update your Video Card Drivers and DirectX) > Get Hardware Acceleration Bar to ‘None’ and finally, Untick ‘Enable Write Combining’.

Note. You can follow the detailed step by step instructions here.

Modern Warfare 3 FPS Fix
If you can’t get the max/stable frame rate in Modern Warfare 3, make sure you have Vertical Sync set to off.

IW5MP.exe has Stopped Working
It’s an old Call of Duty 4 error still creeping the modern warfare games. You can also try turning Anti Aliasing and setting the graphics to low but most of the times, simply connecting a microphone to the 3.5mm port at the back of your PC fixes the issue.

Unable To Connect To Host
See our NAT Guide and Port forwarding tips above to resolve your connection issues.

Disable HPET to fix Stuttering
Search Device Manager on your PC and scroll down to System Devices to open the sub-menu. Scroll down for High Precision Event Timer and click it. Press Actions at the top of the window, and from that pop-up menu, click Disable. Restart your computer and HPET is disabled.

PC Crashing
Go to <path-to-game>\redist\directx\. Run dxsetup.exe to reinstall DirectX. Open Steam and right-click on Call of Duty: Modern Warfare 3 to select Properties. Disable Steam Community In-Game.

Audio issues
Open the Start screen/Start menu, type mmsys.cpl, and press Enter. Now go to the Communications tab and choose Do nothing. Click OK to save your changes.

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