Fix: COD: Modern Warfare 2 Connection Error

COD: Modern Warfare 2 players encounteraconnection error while opening the game, restricting their access to the game. If you are facing suchaproblem, you can findasolution by following the suggestions below.

What is COD: Modern Warfare 2 Connection Error?

This error may occur because the driver is not up to date. The reason for this may occur due to many problems. Possible causes of COD: Modern Warfare 2 Connection error can belisted as follows:

• Graphics or other drivers may not be up to date.
• There may be an internet problem.
• May be an upnp problem.
• Antivirus may be blocking the game.
• Game files may be corrupt or damaged.

The reasonslisted above may cause us to encounter such errors. For this, you can reach the solution of the problem by following the suggestions below.

How To Fix COD: Modern Warfare 2 Connection Error

We can solve the problem by following the suggestions below to fix this error.

1-) Update Graphics Card Driver

In such continuity problems, we may encounter an update error in the graphics card. For this we will need to update the graphics card. If you're ready, let's get started.

For Users with Nvidia Graphics Card;

• First of all, Nvidia company's Geforce Experience We need to download and install the program.
• After the download and installation process, we open our program and open the Drivers menu above.
• Download our update by clicking the Download button that appears above.
• After our download is complete, let's perform the installation process by clicking the quick installation button.
• Restart your computer after this process is finished.

For Users with AMD Graphics Card;

• Published by AMD company AMD Radeon Software We need to download and install the program.
• After completing the download and installation process, we open our program and click the Check for Updates button under the driver and software menu on the right, and check if our video card is up to date.
• You can restart your computer by performing the update.

After updating our graphics driver and restarting our computer, we can try to open the game COD: Modern Warfare 2.

2-) Turn off Antivirus Program

Disable any antivirus program you use, or delete it completely from your computer. If you are using Windows Defender, disable it. For this;

• Open the start search screen.
• Open the search screen by typing "Windows security settings".
• Click on "Virus and Threat Protection" on the screen that opens.
• Click on "Ransomware Protection" in the menu.
• Turn off "Controlled Folder Access" on the screen that opens.

After this, let's turn off real-time protection.

• Type "virus and threat protection" into the start search screen and open it.
• Then click on "Manage settings".
• Turn Real-time protection to "Off".

After performing this operation, we will need to add the Battle.Net and COD: Modern Warfare 2 folder as an exception.

• Type "virus and threat protection" into the start search screen and open it.
• "Manage settings" under Virus & threat protection settings and then "Exclusions Select ">Add or remove exclusions".
• Select Add an exclusion, and then select the folder "Battle.Net" and "COD: Modern Warfare 2" saved to your disk.

After this process, try to run COD: Modern Warfare 2 again by closing the Steam program completely with the help ofatask manager. If the problem persists, let's move on to our next suggestion.

3-) Repair Damaged Files

The presence of damaged or corrupted files in the game folder may cause us to encounter such problems. For this, we can prevent such problems by repairing damaged or corrupted files.

4-) Verify File Integrity of Game

Damage to the game file can cause you to encounter various errorslike this. For this, we can eliminate the problem by verifying the game files.

If you areaBattle.Net user:

• Run the Battle.Net application.
• Click on "Games" at the top of the app.
• Click on the game Modern Warfare 2.
• Click the gear icon next to the "Play" button on the screen that opens.
• After this process, click "Scan and Repair" to start the verification process.

If you areaSteam user:

• Open the Steam program.
• Open thelibrary menu.
• Right click on the game "Modern Warfare 2" on the left and open the "Properties" tab.
• Open the "Local Files" menu on the left side of the screen that opens.
• Click on the "Verify integrity of game files" button in the Local Files menu we encountered.

After this process, the download will be performed by scanning the damaged game files. After the process is finished, try to open the game again.

5-) COD: Create Private Port for Modern Warfare 2

If none of the above suggestions work for you, we can fix the problem by setting the port configured for COD: Modern Warfare 2.

• In the start search screen, type "Windows Defender Firewall" and open it.
• Click on "Advanced Settings" on the left side of the screen that opens.
• Click on the "Inbound Rules" option on the left side of the window that opens and click on the "New Rule" option on the right.
• Choose the "Port" option in the new window that opens and click the "Next" button.
• After this process, select the "TCP" option and type the port we will leave below in the box and click the "Next" button.
  • 3074,3075,27015-27030,27036-27037
• Then select the "Allow Connection" option, press the "Next" button, set three options as selected and click the "Next" button .
• Then, give the name of the port where we performed the installation process and press the "Finish" button.

In this process, we have addedanew rule to the TCP port. In our next action, let's end our process by connecting the UDP port.

• Then add the new rule again and select "Port" and click the "Next" button.
• After this process, select the "UDP" option and type the port we will leave below in the box and click the "Next" button.
  • 3074,4380,27000-27036
• Then select the "Allow Connection" option, press the "Next" button, set three options as selected and click the "Next" button .
• Then, give the name of the port where we performed the installation process and press the "Finish" button.

After this process, run COD: Modern Warfare 2 and check if the problem persists.

6-) Check Your Connection

The problem that occurs in the internet connection can bring along many errors. If your internet connection is experiencing slowness or disconnection, a few steps to fix it; öwhat to give.

• If your internet speed is slowing down, turn your modem off and then on again. This process will relieve your internet a little bit.
• We can eliminate the problem by clearing the Internet cache.

Clear DNS ÖCache

• Type "cmd" into the start search screen and run as administrator.
On the
• Command Prompt screen by typing the following lines of code in order, press enter.
  • ipconfig /flushdns
  • netsh int ipv4 reset
  • netsh int ipv6 reset
  • netsh winhttp reset proxy
  • netsh winsock reset
  • ipconfig /registerdns
• After this operation, it will show that your DNS cache and proxies have been cleared successfully.

After this process, you can restart the computer and open the game. If the problem persists, let's move on to another suggestion.

7-) Turn Your Modem Off and On

Turn off your modem, wait 20 seconds and turn it on again. During this process, your IP address will change and various network problems will be solved. If the problem persists, let's move on to another suggestion.

8-) Server May Be Under Maintenance

Game servers may be under maintenance or down. For this, we can understand what is causing the problem by checking the game servers. For this, you can be aware of the situation by following the official twitter account.

Yes, friends, we have solved our problem under this title. If your problem persists, you can ask about the errors you encounter by entering our FORUM platform.