If you’re experiencing errors with Game Guard we recommend you first ensure that you do not have the retail version of Game Guard installed and are only using the integrated version with Lineage II. If you’re unsure if you have the additional version installed you can look through your Installed programs list through the Control Panel. If you have Game Guard listed here go ahead and uninstall it.
If you’re currently only using the integrated Game Guard version, we recommend you start by deleting the Game Guard folder.
To do this:
First, locate your Lineage II directory. By default, Lineage II installs to [LocalDisk]:\Program Files\NCsoft\Lineage II. Within the System folder, there is a subdirectory titled GameGuard. Delete the GameGuard folder and re-launch LineageII.exe. Let it re-download these files, and then launch the game.
If this does not resolve the issue and the error messages persist, you should verify that you have all firewall or Internet security software disabled. If you are able to connect with your firewall software disabled, then you will need to add exceptions to your firewall rules for the following files: LineageII.exe, L2.bin, GameGuard.Des and GameMon.Des.
These files are by default located in the following directories:
For 32-bit versions of Windows:
C:\Program Files\NCsoft\Lineage II\system\L2.bin
C:\Program Files\NCsoft\Lineage II\system\GameGuard.des
C:\Program Files\NCsoft\Lineage II\system\GameGuard\GameMon.des
For 64-bit versions of Windows:
C:\Program Files(x86)\NCsoft\Lineage II\system\L2.bin
C:\Program Files(x86)\NCsoft\Lineage II\system\GameGuard.des
C:\Program Files(x86)\NCsoft\Lineage II\system\GameGuard\GameMon.des
If after trying all of these adjustments the issue still occurs we recommend trying the following steps:
Game Guard errors can sometimes be caused by 3rd party programs interfering with the game client. If you’re experiencing crashing or freezing we recommend you try disabling all 3rd party programs to see if it has any effect on your issue. For instructions on how to do this please reference the KB article here
Sometimes Game Guard errors can be caused by the way your network is configured. If disabling the 3rd party programs and security software was unsuccessful, we recommend you attempt to bypass your router and connect directly to your modem as a temporary troubleshooting step in an effort to rule out potential router problems. To do so please reference our KB article here
Open a Technical Support Request
If your issue still persists after trying all the suggested steps please submit a Technical Support Request. We recommend you run our Game Advisor application first and attach the results to your support help request. For help with how to do this, please reference the KB Article here