Game client anti-cheat known issues and fixes

Hey everyone, We've collected a list of known issues that we are tracking now that our anti-cheat solution has rolled out to North America. We've also compiled a list of common fixes that can remedy issues you may be encountering, based on the reports that we've reviewed so far. We'll continue to update this thread as we know more. **Known Issues** - Players with an AMD FX/Opteron (Bulldozer family) processor experience very, very long load times followed by unplayable frame rates. This may manifest as black load screens seeming stuck for some players. Make sure that you have the most up-to-date firmware (update your BIOS to the latest version) from your machine's manufacturer, as we have confirmed that this fixes the issue. - The following software products are currently incompatible with the anti-cheat. Removing the software remedies the issue. We are currently working on identifying the exact problems. - [Xunyou](http://www.xunyou.com), a Chinese tunnel accelerator, is not compatible with the changes in League of Legends. You can remedy this by removing this software, following these steps: 1. Uninstall Xunyou. 2. Verify that it has been completely uninstalled by making sure that xunyount.dll has been deleted from _C:\Windows\System32_ and _C:\Windows\SysWow64_. 3. Run an elevated Command Prompt as Administrator (except Windows XP, where a Command Prompt window will suffice). You can do this by right-clicking the Command Prompt icon and selecting Run As Administrator. 4. Type this command: _netsh winsock reset_ 5. Press enter, then restart the computer. - [Backup Now EZ](http://www.nticorp.com/NTI-Backup-Now-EZ-6-cloud.html), a backup solution bundled with Toshiba external hard drives, can cause the game to crash. The latest version of this software does not appear to cause this issue. - [Spybot Search and Destroy](https://www.safer-networking.org/), an anti-malware service. - [Huorong Security](https://www.huorong.cn/), a Chinese security suite. - The FPS counter feature that is installed as part of the Razer SwitchBlade OEM software may cause the game to crash. This does not happen with the latest Cortex overlay software from Razer. - [RivaTuner](http://www.guru3d.com/content-page/rivatuner.html), display adapter mod software. - Some players unknowingly have kernel debugging enabled which will cause the game to freeze or crash, by design. To disable it, follow these steps: 1. Run an elevated Command Prompt as Administrator. You can do this by right-clicking the Command Prompt icon and selecting Run As Administrator. 2. Type this command: _bcdedit /debug off_ 3. Press enter, then restart the computer. **Common Fixes** - Make sure that your anti-virus or security software is up to date. We have seen a number of reports with very old versions of anti-virus software that are no longer supported or that have newer, compatible versions. - If you run the game in a virtual machine, you must do so with GPU pass-through technology. The game will not run in any other virtual machine configuration. Please see [this post](https://boards.na.leagueoflegends.com/en/c/bug-report/GX3Zhxwe-game-client-anti-cheat-known-issues-and-fixes?comment=00020008) for more information about our rationale behind this decision. - Do not run the game with a kernel debugger enabled. This will cause a game crash or reconnect loop. - If your game client refuses to patch after using one of the test executables that we provided, you may need to repair your installation before trying to patch. **Issues Fixed** - Some anti-virus software (such as Comodo Internet Security, Avecto Privilege Guard, etc) would cause the game to crash on startup. This issue should be addressed by patch 8.13. - Players were experiencing lag spikes 5-15 minutes into the game. This should be addressed by a hotfix applied at 10:30 AM PST, Friday, June 15. - Stuttering or hitching was appearing for some players throughout the game. This should be addressed by a hotfix applied at 7:30 PM PST, Thursday, June 14. **How to Create a Dump File** As we work on diagnosing issues, we may ask you to provide a dump file which will give us a lot of insight into what's causing problems for you. We would really appreciate it if you could provide these dump files to us whenever possible. You can do it by following these steps: - If you receive a critical error message that offers to generate a dump file: 1. Select _Yes_ to generate a dump file. 2. Select _Yes_ again to generate a full memory dump. This is preferred. If you would like to generate a smaller dump, select _No_, but note that this may not contain the information we need to diagnose the problem. 3. Zip the file. 4. Upload the file that is generated to a file hosting service like [Dropbox](http://www.dropbox.com) or [Google Drive](http://drive.google.com). 5. Make sure access permissions for the hosted file are set to _Public_, so that we can view it. 6. Link the dump file in this thread, providing a description of your problem with as many details as possible. - If you do not receive a message, but want to create a dump file: 1. Open Task Manager. 2. Right-click on the _League of Legends.exe_ process (not the Ux processes) and select _Create Dump File_. This is the "League of Legends (TM) Client". 3. Zip the file. 4. Upload the file that is generated to a file hosting service like [Dropbox](http://www.dropbox.com) or [Google Drive](http://drive.google.com). 5. Make sure access permissions for the hosted file are set to _Public_, so that we can view it. 6. Link the dump file in this thread, providing a description of your problem with as many details as possible. - If the game closes immediately without giving an error message, and you're unable to generate a dump before the League of Legends.exe process closes, follow these instructions: 1. Download the [procdump.zip](https://github.com/RiotPerma/dump/raw/master/procdump.zip) file. 2. Extract the contents of the zip file to your desktop or folder of your choice. 3. Right-click on _setup.bat_ and select _Run As Administrator_. (Alternatively, you can start a new instance of the Command Prompt by right-clicking on it and selecting _Run As Administrator_, then navigating to the folder containing _setup.bat_ and executing the command _setup.bat_.) 4. The prompt should say that _procdump.exe_ has been set as the just-in-time debugger. 5. Join a custom game or practice tool to launch the game again. 6. If the game crashes, one or more new _.dmp_ files will appear in the folder where you extracted _setup.bat_ and _procdump.exe_. 7. Upload the dump file(s) to a file hosting service like [Dropbox](http://www.dropbox.com) or [Google Drive](http://drive.google.com). 8. Make sure access permissions for the hosted file are set to _Public_, so that we can view them. 9. Link the dump file(s) in this thread, providing a description of your problem with as many details as possible. Be sure to include the names of any security or third-party software you're using.
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