Easily Fix Modern Warfare Multiplayer not Working

For a while now, Call of Duty has been one of the most sought-after PC games and it continues to intrigue gamers. However, we have gotten some complaints from users that have been running into the Modern Warfare Multiplayer not working issue on their devices. In this article, we have written in detail about this and have managed to fix this issue completely.

Why is the Modern Warfare Multiplayer not Working on your Device?

After having to go through a lot of different tutorials, user comments, and experiences, we came to the conclusion that the following must be the most crucial reasons due to which the error is triggered.

• Outdated Drivers: Sometimes, if the Modern Warfare Multiplayer not Working issue is being triggered, it must mean that the drivers on your computer might have been outdated. Therefore, we suggest that you update them as we have mentioned below.
• Regional Issue: In certain cases, there might be a network outage in a specific region and due to that, the error might be triggered. We suggest that you try the following fixes in order to make sure that there aren’t regional blockages.
• Corrupted Cache: If the cache has been corrupted for the game or its launcher, you will run into the Modern Warfare Multiplayer not Working error, therefore, we suggest that you try to clear out the corrupted cache and regenerate it to fix the issue.

Now that we have taken you through some of the reasons that could be behind the occurrence of this error, we can finally start implementing the solutions.

Before You Start:

• To begin, switch off your Wi-Fi router, unplug it from the power socket and leave the router in a powered-off state for 5-10 minutes.
• Now power on the router, wait until all the indicators are back to their normal state, and then browse some websites to confirm that the internet is working normally.
• Finally, launch the game, navigate to multiplayer mode and check if the issue has been fixed. If this issue is still there then follow the potential fixes stated beneath.

How to fix modern warfare multiplayer not working issue:

Solution 1: Update Network Drivers Using Device Manager

Sometimes the network drivers are not updated that can lead to connectivity issues on your computer. Follow the below-mentioned procedure to update the Network drivers on your system:

1. Click on the Start button, type “Device Manager” in the search box, and press enter button. The device manager window will appear in front of you, locate the “Network Adapters” option, expand it, right-click on the “Wi-Fi” or “LAN” adapter (whichever you are using) and select the option “Update Driver”.

   

2. A window will appear in front of you, select the option “Search automatically for updated driver software” and afterward, follow the on-screen instructions to install the latest version of the Wi-Fi or LAN adapter driver on your system.

Solution 2: Update Network Drivers (Alternate Method)

Drivers that are out of date on your computer can cause numerous applications to function irregularly and trigger a variety of issues. Follow the procedure given below to automatically update your computer’s drivers using Driver Easy utility:

1. To begin, download and install the software from this link, then start it and click the “Scan Now” option.
2. Now the software will scan your system for any obsolete or malfunctioning drivers, and a list of those that need to be updated will be displayed in front of you.

   

3. Lastly, download and install the faulty/outdated drivers, then restart your PC, launch the game and verify if the error is still occurring in the game.

Solution 3: Use a VPN

Some gamers were able to successfully launch the game in multiplayer mode by using a VPN because the server via which they were trying to connect was down at times, and by changing the server location, they were able to gain access to a variety of different servers. Follow the steps outlined below to set up a VPN on your computer:

1. To get started, navigate to the NordVPN website and sign up, once you’ve done that, open the VPN software, scroll down to the menu, select a server from the list, and click the “Quick Connect” option.

   

2. Try launching the game in multiplayer mode when the VPN is successfully connected through that server.

Solution 4: Switch DNS Server

1. To begin, go to the Windows Start button and type “Network and Sharing Center” into the search box, then press the “Enter” button.

   

2. Select the “Network & Internet” option and then choose the “Change Adapter Options”.

   

3. In the Network Connections window, right-click on the LAN or Wi-Fi connection and then click on the “Properties” option.

   

4. Select the option “Internet Protocol Version 4 (TCP/IPv4)” from the list and then click on the “Properties” option.

   

5. Internet Protocol Version 4 (TCP/IPv4) Properties window will appear in front of you, click on the option “Use the following DNS server addresses” and afterward enter the following IP addresses:

For the Preferred DNS server:

8.8.8.8

For Alternate DNS server:

8.8.4.4

6. After performing the above-mentioned steps, click on the “OK” button.
7. Now to remove the DNS cache, click on the Windows Start button, type “cmd” in the search box and click on the “Run as administrator” option.

   

8. In the command prompt window, type the following command and hit “Enter” button:

ipconfig /flushdns

9. When the “Successfully flushed the DNS Resolver Cache” message appears on the command prompt window, close it, launch the game and check if the multiplayer mode is working now.

Solution 5: Recreate The Battle.net Files

Some users reported that deleting the old Battle.net and Blizzard Entertainment folders and recreating them afterward fixed their issue hence follow the steps indexed below to perform this procedure:

1. Firstly, close the “Battle.net” application if it’s already running, then press the “Windows + R” keys simultaneously and enter the following command in the search box:

%appdata%

2. Locate the “Battle.net” and “Blizzard Entertainment” folders and “Delete” them.
3. Again, press the “Windows + R” keys simultaneously and enter the following command in the search box:

%localappdata%

4. Locate the “Battle.net”, “Blizzard Entertainment” folders, “Delete” them and perform the same procedure in the below-given file path:

%programdata%

5. Finally, when you have successfully deleted the “Battle.net”, “Blizzard Entertainment” folders in all the above-mentioned file paths, then restart your PC and check if the issue is resolved.

Solution 6: Launch The Game From The Dedicated Launcher

Many users reported that this issue occurred when the two games namely Call of Duty Modern Warfare Multiplayer and Call of Duty Warzone were merged into a single launcher i.e., Call of Duty Cold War. To sort out this issue, simply launch the game from the “Call of Duty Modern Warfare executable” file and avoid launching from the Call of Duty Cold War launcher.

Solution 7: Clear Cache Files On Steam

The steam client can also be used to verify the game file’s authenticity. Viruses can corrupt game files, or antivirus software can eliminate them due to false detection. Follow the steps given below to verify the integrity of game files:

1. Launch the “Steam” application, navigate to the Games “Library” section, right-click on the “Call of Duty: MW” game, and select the “Properties” option.
2. Locate the “Local Files” tab and select the option ”Verify integrity of game cache…” located at the bottom of the list.

   

3. Now Steam will verify the integrity of the affected game files, after this try launching the game again and check if the issue is still occurring.

Solution 8: Reinstall The Game

If none of the above-mentioned solutions work for you, consider reinstalling the game hence follow the steps outlined below:

1. Start the “Battle.net” application, in the All Games tab, locate the “Call of Duty: MW” game icon and choose the option “Uninstall Game” from the options menu.

   

2. Remove all remaining files from the game’s installation folder after the game has been successfully uninstalled from your PC and then install the game from the Battle.net main menu.

Solutions For Xbox Users:

Solution 1: Clear The MAC Address

Some users stated that wiping their console’s MAC address fixed the problem, therefore, follow the instructions given below to clear the MAC address:

1. Navigate to the “Settings” option of your console and then select the “Network Settings” option from the menu.

   

2. Choose the “Advanced Settings” option and then select the option “Alternate MAC address” from the menu.

   

3. Two options will be enlisted in front of you, select the option “Clear”, afterward exit the Settings window, launch the game and check if the error is still arising.

Solution 2: Uninstall Multiplayer Packs

1. Navigate to the “Manage Add-Ons” section of your Xbox’s storage drive, “Uninstall” all the downloaded multiplayer packs of the game, and leave only the one’s that are mentioned below:

• Call of Duty: MW – Multiplayer Pack
• Call of Duty: MW – Multiplayer Pack 2
• Call of Duty: MW – Multiplayer Pack 3
• Call of Duty: MW – Multiplayer And Special Ops Pack

  

2. After successfully uninstalling the multiplayer packs, restart your Xbox and launch the game afterward.

Solution 3: Use a dedicated Launcher

This problem was discovered by many players after the two games, Call of Duty Modern Warfare Multiplayer and Call of Duty Warzone, were combined into a single launcher, named Call of Duty Cold War. To solve this problem, start the game from the “Call of Duty Modern Warfare executable” file rather than the Call of Duty Cold War launcher.

Solution 4: Clear The Console Cache 

For Xbox One Users:

Sometimes just clearing the cache files of your console can resolve your issue therefore follow the instructions given below to clear the cache files:

1. Switch off your console while it’s still on by pressing the Power button until the power light turns off.

   

2. Unplug the cables from the power socket and wait 2-3 minutes until all the power is drained from the capacitors.
3. Now switch on your console by plugging in the power cables and check if the modern warfare issue is resolved.

For Xbox Series X/S Users:

1. Press the Xbox logo button on your controller while on the home screen, then navigate to the “Profile and System” tab, select the “Settings” option then locate and select the “All Settings” option.

   

2. Navigate to the “Device and Connections” tab, select the “Blu-Ray” option from the list, locate and select the “Persistent Storage” option and choose the “Clear Persistent Storage” option.

   

3. Now the cache of your console will be cleared, afterward, restart your device.

Solution 5: Install Missing Multiplayer Data Packs

For Xbox Series X/S Users:

1. Launch the “Microsoft Store” from the home screen, type “modern warfare” in the search box, and select it from the results list.
2. Scroll down the menu, locate the “In This Bundle” option and install the below-mentioned multiplayer data packs:

• Multiplayer Pack
• Multiplayer Pack 2
• Multiplayer And Special Ops Pack
• Multiplayer And Special Ops Pack 2

3.  Restart your console and then start the game.

Solutions For PlayStation Users:

Solution 1: Uninstall Multiplayer Packs

1. Navigate to the storage drive of your PlayStation console, “Uninstall” all the downloaded multiplayer packs of the game, and leave only the one’s that are mentioned below:

• Call of Duty: MW – Multiplayer Pack
• Call of Duty: MW – Multiplayer Pack 2
• Call of Duty: MW – Multiplayer Pack 3
• Call of Duty: MW – Multiplayer And Special Ops Pack
• Campaign Pack 1
• Campaign Pack 2

  

2. Restart your PlayStation console after successfully uninstalling the multiplayer packs, and then launch the game.

Solution 2: Use a dedicated Launcher

To fix this issue, start the game from the “Call of Duty Modern Warfare executable” file rather than the Call of Duty Cold War launcher.

Solution 3: Clear The Cache Files

For PS4/PS5 Users:

1. While the PlayStation is in a turned-on state, press the “Power” button until the power on the light turns “OFF” to switch off your console, unplug the cords from the power outlet and wait 2-3 minutes for the capacitors to discharge completely.

   

2. Now turn on the PlayStation, launch the game, and check if the Modern Warfare Multiplayer not Working issue is still occurring.

Solution 4: Update The License

For PS4 Users:

1. Firstly, navigate to the “Settings” option from the home screen of your console, locate the “Account management” option from the list and select it.

   

2. The account management window will appear in front of you, choose the option “Restore Licenses” located at the bottom of the menu, select the “OK” button on the prompt window and let the process complete.

   

3. Finally, once the licenses are successfully restored, restart your console, launch the game and verify if the multiplayer mode is now working.

For PS5 Users:

1. Navigate to the “Settings” option on your console’s home screen, then select the “Users and Accounts” option from the menu.

   

2. Access the “Others” option from the menu, then locate the “Restore Licenses” option and choose the “Restore” button when prompted.

   

3. Restart your console, launch the game and confirm if the Modern Warfare Multiplayer not Working issue is resolved.

Solution 5: Install Missing Multiplayer Data Packs

For PS5 Users:

1. Start the game and when the home screen appears, press the “R3” button on your controller, and the “Manage Installs” window will appear in front of you.

   

2. Navigate to the “Modern Warfare Game Packs” tab and install the below-mentioned multiplayer data packs:

   Multiplayer Pack 1 and 2
   Multiplayer And Special Ops Pack 1 and 2

3. Restart your console and launch the game afterward. Check to see if this fixes the Modern Warfare Multiplayer not Working issue.

Workaround:

If none of the preceding approaches work for you, contact Activision Support for in-depth troubleshooting.

If you are still unable to resolve the problem, please Contact Us for further assistance.