ArmA 3 Won’t Start / BattlEye / Signature Errors

Console checklist

1. Read BattlEye / signature / mod path errors.
2. Fix keys and -mod= / -serverMod= lists.
3. Restore last known-good mission/mod set from backup.
4. Confirm port span free.
5. Ticket with console excerpts via the client area.

Related guides

• Mods
• Backups
• DDoS Protection Basics for Game Servers

Frequently Asked Questions

Missing keys?

Ensure .bikey files match loaded mods.

Bad -mod= path?

Check MODIFICATIONS / SERVERMODS vars and folder names.

Port conflict?

Another process on the same base port — check Network.

Need help?

If you are stuck after following this guide, open a ticket from the Chapter22 client area with the exact error, the port or DNS change you made, and whether the service listens locally (ss / Resource Monitor) but fails externally.

Build the server. Grow the community. Start your next chapter.