The VAN 1067 error in League of Legends is one of the most common Riot Vanguard problems players face after launching the game. Usually, the game closes instantly or refuses to start, showing a Vanguard connection error message.

The issue is connected to Riot’s anti-cheat system, Riot Vanguard. According to Riot Games, VAN 1067 is a “connection error” that may happen because of unusual software, corrupted Vanguard files, or system security settings.

This guide explains exactly what causes this LoL error, how to fix it, and which solutions work most often on Windows 10 and Windows 11.

What is VAN 1067?

VAN 1067 is a Riot Vanguard startup or verification failure. Vanguard cannot properly initialize, so League of Legends shuts down before entering the game.

Most players see the error after:

• a Windows update
• a Riot Vanguard update
• changing BIOS settings
• installing new software
• enabling virtualization tools
• installing driver-level programs

Riot officially says the error may be caused by “unusual software installed on your computer.”

How to fix VAN 1067 League of Legends Vanguard error

The most common causes are:

• TPM 2.0 disabled
• Secure Boot disabled
• Riot Vanguard corruption
• Vanguard service not running
• incompatible drivers
• VPN software
• virtualization tools
• antivirus conflicts
• remote desktop applications
• outdated BIOS or Windows versions

Some users also discovered specific driver conflicts. One Reddit report linked VAN 1067 to the mdnsNSP.dll driver from Audinate Dante Controller software. Removing it fixed the error immediately. 

However, if you want to fix VAN 1067 League of Legends Vanguard error, start with: 

Fix 1: Restart Your PC

This is the first solution Riot recommends for VAN 1067.

A full reboot can:

• restart Vanguard services
• clear temporary driver conflicts
• reload Riot Client processes

Do not just close League of Legends. Restart the entire system.

Fix 2: Enable TPM 2.0

TPM 2.0 is now extremely important for Riot Vanguard, especially on Windows 11 systems. Many VAN 1067 cases happen because TPM is disabled. You can also see this error with it:

Check TPM Status first:

1. Press Windows + R
2. Type: tpm.msc
3. Press Enter

If TPM works correctly, Windows will show:

“The TPM is ready for use”

If TPM is disabled, you must enable it in BIOS.

Enable TPM in BIOS

Restart your PC and enter BIOS using:

• DEL
• F2
• F10
• ESC

Then find one of these settings:

Intel:

• PTT (Platform Trust Technology)

AMD:

• AMD fTPM

Enable the setting, save changes, and reboot.

Fix 3: Enable Secure Boot

Secure Boot is another major requirement for Vanguard. Check Secure Boot by:

• Press Windows + R
• Type: msinfo32
• Press Enter

Find:

• Secure Boot State

If it says “Off,” enable it in BIOS.

Enable Secure Boot

• Enter BIOS
• Open Boot or Security settings
• Enable:
  • Secure Boot
• Save and restart

Some systems also require:

• UEFI mode enabled
• Legacy/CSM mode disabled

Fix 4: Restart the Vanguard Service

The Vanguard service (vgc) sometimes fails to start automatically, which triggers VAN 1067.

1. Press Windows + R
2. Type: services.msc
3. Find: vgc
4. Right-click → Properties

Set:

• Startup type → Automatic

Then click:

• Start
• Apply
• OK

Restart the PC afterward.

Fix 5: Reinstall Riot Vanguard

Corrupted Vanguard installations are one of the biggest reasons for VAN 1067. To remove Vanguard:

1. Open:
   • Control Panel
   • Programs and Features
2. Uninstall:
   • Riot Vanguard
3. Restart your computer

Reinstall Vanguard

1. Launch League of Legends
2. Riot Client automatically reinstalls Vanguard
3. Restart the PC again

Riot officially recommends reinstalling Vanguard if restarting does not fix the issue

Fix 6: Remove Conflicting Software

Some programs conflict directly with Riot Vanguard.

Known problematic software includes:

• Audinate Dante Controller
• VPN tools
• VMware
• VirtualBox
• Remote Desktop apps
• driver-level RGB software
• hardware monitoring tools

If the problem started recently, uninstall any newly added system-level applications first.

Fix 7: Disable Virtualization

Virtualization software can interfere with Vanguard.

Disable:

• Hyper-V
• Virtual Machine Platform
• Windows Hypervisor Platform

How to Disable

1. Open: “Turn Windows features on or off”
2. Uncheck:
   • Hyper-V
   • Virtual Machine Platform
   • Windows Hypervisor Platform
3. Restart the PC

Fix 8: Update Windows and Drivers

Old Windows security files can break Vanguard compatibility.

• Update:
  
  Windows
• chipset drivers
• network drivers
• BIOS firmware

Go to:

• Settings → Windows Update

Install all available updates before launching League again.

Fix 9: Run Network Reset Commands

Sometimes VAN 1067 is connected to networking problems.

Open Command Prompt as Administrator and run:

ipconfig /flushdns

netsh winsock reset

Restart the computer after running both commands.

Fix 10: Scan for Malware

Riot states that VAN 1067 may indicate suspicious software activity.

Run scans using:

• Windows Defender
• Malwarebytes
• Bitdefender

Remove anything suspicious before relaunching League.

Final Fix: Reinstall League of Legends

If nothing works:

1. uninstall League of Legends
2. uninstall Riot Client
3. uninstall Riot Vanguard
4. delete leftover Riot folders
5. reinstall everything from scratch

This resolves most persistent VAN 1067 errors.