How to Fix Error Code 25509 in Modern Warfare 2

Disabling the VPN or proxy may fix the error code 25509

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

If you are a fan of Modern Warfare 2, you may encounter the error code 25509 while matchmaking.MW2has been known for glitches and errors due to bug patch updates. However, 25509 is a relatively new error reported by many gamers off-late.

What causes error code 25509 in MW2?

How do I fix error code 25509 in Modern Warfare 2?

Try some preliminary checks to see if one of them helps fix the error:

If none of the above help, we have some proven workarounds to help you fix the error code 25509.

1. Reset your network hardware

Now that you successfully power cycled and reset the network hardware, you should not encounter the error anymore.

2. Reset the console keeping games and apps

Once done, you can now continue with your game without coming across the error code 25509 in MW2 anymore.

3. Turn off VPN and proxy

In case you encounter a proxy error, follow the troubleshooting methods in our detailed post tofix the proxy error in Windows 11.

But, if you are using a third-party service like the Express VPN you can follow the method in our post (also applicable for Windows 11) todisable VPN temporarily or for good.

If all of the above methods fail to fix the error code 25509 in MW2, you can try contactingCall of Duty supportvia chat, contact form, or over the phone.

While it’s a new error code that has been bugging game lovers recently, these are some of the working solutions we found from different forums.

If you found any other solution for the error code 25509, do let us know in the comments box below.

How to Fix Error Code 25509 in Modern Warfare 2#

What causes error code 25509 in MW2?#

How do I fix error code 25509 in Modern Warfare 2?#

1. Reset your network hardware#

2. Reset the console keeping games and apps#

3. Turn off VPN and proxy#