FIX: Steam error joining multiplayer session (5 solutions)

1. Download the Microsoft .NET Framework repair tool
2. Select the NetFXRepairTool.exe and download it
3. Open the downloaded file and follow the instructions on the screen (you need admin rights)
4. Once this is done, restart your computer
5. Launch Steam, your game, and try to join a multiplayer session

Some Steam games require .NET Framework to work properly. If you don’t have this software package installed, it could be the reason why you can’t join online sessions with other gamers on Steam.

However, the Microsoft .NET Framework repair tool should solve any problems related to this dependency, including missing libraries, failure to launch, or an outdated version.

1. Using your file explorer, visit the following address:
   • C:UsersYOURUSERAppDataLocal
2. Replace YOURUSER with your PC username
3. Select and delete the Steam folder
4. Also, select and delete your game folder in this location

Clearing Steam and game cache is a good way to fix multiplayer issues. If you know the other players, get in touch with them and ask them to do the same on their devices.

Use a premium VPN solution

If you want to use a VPN to not only avoid Steam multiplayer issues but also improve your ping by connecting to VPN servers closer to the host, consider investing in a premium VPN service.

And we can’t think of a better option than Private Internet Access. It has VPN servers optimized for gaming.

You can even host game servers via VPN without having to configure router settings. That’s because PIA is one of the few VPNs with native support for port forwarding.

Alternatively, you can set up split tunneling mode, exclude Steam from the secure tunnel, and continue using the VPN in your other applications, such as web browser or torrenting client.

Private Internet Access

Use a trustworthy VPN service like PIA to play Steam games without worrying about multiplayer connectivity issues.

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If you’re using a free VPN while playing on Steam, it could be the reason why you’re experiencing an error when trying to join multiplayer sessions: your IP address changed.

But you can resolve this problem by turning off your free VPN before firing up Steam.

1. Go to Documents > My Games folder
2. Select any folders that resemble: packageddumps, moduserdat, logs, dumpgs
3. Right-click each folder and select Properties
4. Go to the Security tab and select your group of usernames
5. Click the Edit button
6. Select the first group or username and check the Deny box
7. Repeat the previous step for other user groups
8. Save changes
9. Restart your Steam games

The instructions above prevent Steam from creating game cache files in those folders, in order to fix the error when you’re trying to join multiplayer sessions.