League of Legends
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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.
Related articles
Vanguard Codes
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 ourcomplete guide to LoL client errors.







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