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Error VAN -87 usually indicates an issue with the Vanguard anti-cheat system. Here are steps you can try to fix it:
1. Restart VALORANT and Riot Client: Close both and restart to see if it resolves the issue.
2. Reinstall Vanguard:
- Uninstall Riot Vanguard through the control panel.
- Restart your computer.
- Launch VALORANT. Vanguard should reinstall automatically.
3. Check for Background Software: Ensure that no software running in the background is conflicting with Vanguard.
4. Update Windows: Sometimes updating your OS can resolve compatibility issues.
5. Check Network Settings: Ensure your network settings are configured correctly and there are no firewall issues.
If the problem persists, visit the Riot Games support page for additional assistance or to submit a ticket: Riot Games Support
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