Fixed – Call of Duty (COD) Vanguard DUHOK – LESTER on PlayStation

The DUHOK – LESTER error is a common issue that many COD Vanguard players encounter when playing the game. COD Vanguard DUHOK – LESTER is an issue with update files not downloading and installing. When an update is sent and there is a problem with the downloaded file or installation, the error code will appear.

The issue appears to be specific to PS5, with no issues reported by PS4 and PC users at this time. It is usually caused by a server/backend issue and the unlinked Activision accounts.

Fix: COD Vanguard Duhok-Guernsey - Not Signed in to a Profile

When you try to load up COD Vanguard, you may get the error “connection failed reason Duhok Guernsey”. This post provides some proven solutions.

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Now, let’s see how to fix the COD Vanguard connection failed DUHOK – LESTER issue.

Case 1: Check Your Internet Connection on PS5

If you are stuck on the COD Vanguard login screen with the “DUHOK-LESTER” error message, please check the Internet connection on PS5.

Step 1: Turn on your Playstation 5 console. 

Step 2: From the Main Menu, go to Settings and choose Network. Then, select Test Internet Connection.

Step 3: Check the result. If the Internet condition is great, you can try the following methods. If not, you can restart your modem.

Case 2: Turn off On-Demand Texture Streaming

Turning off on-demand texture streaming can help you eliminate the COD Vanguard error DUHOK – LESTER.

Step 1: Turn on your Playstation 5 console and go to Settings. 

Step 2: Go to the Graphics tab. Scroll down and select On-Demand Texture Streaming. Then, turn off the first option.

Case 3: Update COD Vanguard on PS5

Then, you can try to update COD to the latest version on PS5.

Step 1: Select Call of Duty Vanguard on the home screen and press the Options button on your controller.

Step 2: Then, go to Check for Updates and press the X button. It will check for updates and automatically install them if there are any.

Step 3: After updating to the latest version, check if the DUHOK – LESTER COD Vanguard issue has gone.

Case 4: Link Your Activision Account

linking issues with the Activision account and the COD game profile may cause several conflicts during log-in or connecting to the game server.

Step 1: Go to the official Activision site on a PC or phone to log in to your account.

Step 2: Click the Profile button. Click the Link Account button to link your PlayStation account.

Step 3: Then, you will be asked to insert your PlayStation account. Next, you should see that the button has changed to Unlink.

Case 5: Change MTU Settings

You can change the MTU Settings on your PlayStation 5 console:

Step 1: Open Settings on your console. Then, select the Network settings.

Step 2: Go to the Settings menu, and select the Set Up Internet Connection button.

Step 3: Choose the internet connection you want and select the MTU Settings option.

Step 4: Now try to lower it by 25. You can repeat the process until you find the best MTU Settings.

Case 6: Avoid Preloading the Next COD Vanguard Update

You should avoid preloading the next update of COD Vanguard on the PS5. It may cause some issues with connection failure or dev errors. Until the developers come up with a patch fix, you should avoid preloading.

Case 7: Reinstall COD Vanguard

If the above solutions are not working, you had better reinstall COD Vanguard on PS5.

Step 1: Open the console and sign in to your PlayStation account.

Step 2: Go to the home screen and find COD Vanguard.

Step 3: Press the Options button to open Settings for the game.

Step 4: Next, select the Delete button. Then you will receive the This item will be deleted from console storage message and click OK to continue.

Step 5: Go to the PS Store on your console and reinstall the Call of Duty Vanguard.

Final Words

To sum up, this post has shown 7 solutions to COD Vanguard DUHOK – LESTER issue. If you have any better solutions to fix it, you can share them in the comment zone.