Black Ops 6 Open Beta "unable to join game session" error: Possible fixes and reasons

BO6 is now finally available to download for COD fans, and with its arrival players have encountered an age-old Black Ops 6 Open Beta “unable to join game session” error. Apparently, this isn’t something new for the community as players have already faced these trivial issues upon a COD’s new title launch in the servers. While this might raise some concerns among the COD community, players don’t have to worry much about it. Instead, they can follow a few straightforward steps that might help to get rid of this issue.

Keeping that in mind, this article will list some potential reasons that might cause the widely known Black Ops 6 Open “unable to join game session” error. Alongside the reasons, we’ll also list some possible fixes to avoid such a problem.

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Possible fixes for Black Ops 6 Open Beta "unable to join game session" error

Here are some possible fixes that can help circumvent the well-known Black Ops 6 Open Beta "unable to join game session" error:

1) Troubleshoot your Internet connection

Having a poor internet connection might cause the "unable to join game session" error in Black Ops 6 beta. Hence, we strongly recommend ensuring that your internet is working properly.

To ensure a stable internet connection, navigate to third-party websites like Speedtest.net and check your internet speed. If your internet speed is slow, you're getting a high ping, or are seeing significant packet loss, contact your internet provider to get past this BO6 beta issue.

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2) Verify game files (Steam and Battle.net client)

Scan and repair option on Battle.net for BO6 (Image via Blizzard)

Having corrupted files in your Black Ops 6 game file might lead to the BO6 beta "unable to join game session" error. Hence, verifying the game files would be a viable option to resolve it. This activity will remove all sorts of corrupted data and add the required files to get rid of the lobby-joining error.

Here is a detailed overview of the steps you must follow:

For Battle.net

• Open Battle.net Client.
• Navigate to the Call Of Duty game.
• You’ll find a Settings icon beside the Play option, press that.
• Click on the Scan and Repair option.

For Steam

Verifying integrity of BO6 files via Steam (Image via Steam)

• Open Steam client.
• Navigate to the Call Of Duty game from the library.
• Press right-click and click on properties.
• Click on Installed files.
• Click on the option showing Verify integrity of game files.

Upon pressing the Verify option, wait for a few minutes until the process ends. Try launching the game to check if the "unable to join the game session" issue has been resolved.

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3) Turn off third-party applications and overlays

If fixing your internet connection doesn’t fix your issue, turning off third-party applications or overlays might help you clear out the BO6 beta "unable to join game session" error. Here are the steps:

• Open Task Manager.
• Look for any unwanted applications consuming too much of your Memory/RAM.
• Close those applications.
• Look for any application that has an overlay turned on. Turn off those overlays.

Upon performing the task, you might enter any lobby of Black Ops 6 beta without any obstacles.

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4) Restart Battle.net client

If any of the aforementioned solutions doesn’t work, and you purchased the game on Battle.net, you might want to restart your Battle.net client. Doing this could give your game a fresh start and clear some internal issues, including the BO6 beta "unable to join game session" error.

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5) Wait for a patch from the developers

If none of the possible solutions work for you, navigate to COD’s official forums to check if anyone else is facing this issue. If they are, it's most probably a server-side issue.

In the meantime, COD developers may issue a patch to fix the error. If so, download the patch and you’ll be good to go.

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Potential reasons for the Black Ops 6 Open Beta "unable to join game session" error

There could be a plethora of reasons for the common Black Ops 6 Open Beta "unable to join game session" error on their system. These include the following:

• Battle.net client error.
• Poor internet connection.
• Encountering third-party applications or overlays.
• Having Corrupted files inside the game folder.
• Server-side issue.

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For more content related to Infinity Ward’s latest FPS title, check out Sportskeeda’s Black Ops 6 page.