We’ve got the solution to every Vanguard error in LoL, ready for you to use.

Vanguard, Riot Games' anti-cheat, can cause all sorts of problems with League of Legends, so we've compiled every Vanguard error and their fixes.

Riot Games has recently brought Vanguard, their kernel-level anti-cheat program, to League of Legends. It's been in VALORANT since the game's inception, but has only recently made it into League of Legends. It's brought with it a boatload of possible errors that can stop fans from even logging in to LoL. Here's a comprehensive list of every Vanguard error we know of in Riot's hit MOBA, and how to fix it.

Every Vanguard error and their solutions

Here's a full list of all the most common and well-documented Vanguard errors. Most tend to fall into three categories, an installation issue, a connection error, or something related to Windows settings. Below is all of the error codes categorized by code, type, and cause, along with links to in-depth errors for every code you could encounter.

(Image via Riot Games)
(Image via Riot Games)

Vanguard Codes

Error Code
Type
Cause
VAN -1Uninstall FailureVanguard doesn't appear to be installed properly.
FULL GUIDE HERE.
VAN 0Connection ErrorPossibly a program runtime issue re-triggering Vanguard authentication.
FULL GUIDE HERE.
VAN 1Connection ErrorRiot Client/LoL error.
FULL GUIDE HERE.
VAN 6Connection ErrorRiot Client/LoL error.
FULL GUIDE HERE.
VAN 68Connection ErrorRiot Client/LoL error.
FULL GUIDE HERE.
VAN -81Connection ErrorPossible installation error, some causes unknown.
FULL GUIDE HERE.
VAN 84Connection ErrorRiot Client/LoL error, possibly ISP issues.
FULL GUIDE HERE.
VAN -102Connection ErrorPossible installation error.
FULL GUIDE HERE.
VAN -104Connection ErrorPossible installation error.
FULL GUIDE HERE.
VAN 128 Connection ErrorOften caused by several specific programs installed on the PC.
FULL GUIDE HERE.
VAN 138Connection ErrorRelated to running LoL and Vanguard on a virtual machine.
FULL GUIDE HERE.
VAN 152HWID BanThe computer running LoL has been hardware-ID banned by Vanguard.
FULL GUIDE HERE.
VAN 1067Connection ErrorSometimes caused by malware infecting your PC.
FULL GUIDE HERE.
VAN 9001Windows BIOS ErrorTPM 2.0 not enabled in Windows BIOS.
FULL GUIDE HERE.
VAN 9002Windows Security ErrorWindows Exploit Protection not enabled or not functioning.
FULL GUIDE HERE.
VAN 9005Windows BIOS ErrorUEFI and TPM 2.0 not enabled in Windows BIOS.
FULL GUIDE HERE.
VAN 9006Windows Version ErrorWindows version is outdated.
FULL GUIDE HERE.

Here's your complete guide to every Vanguard error in League of Legends. If you're still getting non-Vanguard-related errors with the League of Legends client, check out our complete guide to LoL client errors.