VEIN Server Won't Start - Common Fixes
Resolve startup issues with your VEIN dedicated server using these proven solutions.
Fix 1: Verify Server Files
Corrupted or missing game files are the most common cause of startup failures.
- In Pterodactyl panel, go to Settings
- Click Reinstall Server (this won't delete your saves)
- Wait for reinstallation to complete
- Start the server again
Fix 2: Check Port Availability
VEIN requires specific ports to be available. Port conflicts will prevent startup.
Default Ports:
Game Port: 7777 (UDP)
Query Port: 27015 (UDP)
RCON Port: 27016 (TCP) - if enabled
If you changed ports in your config, ensure they don't conflict with other servers.
Fix 3: Validate Configuration Files
Syntax errors in config files will crash the server on startup.
- Open File Manager in your panel
- Navigate to
ServerConfig/ - Check
ServerSettings.inifor typos - Ensure no special characters in server name (stick to alphanumeric)
- Verify MaxPlayers is a number between 1-64
Fix 4: Clear Cache and Temp Files
Stale cache files can cause startup loops.
- Stop your server completely
- In File Manager, delete the
.cache/folder - Delete any
*.tmpfiles in the root - Restart the server
Still Not Working?
If none of these fixes resolve your issue:
- Check the console output for specific error messages
- Copy the error and search our Discord #support channel
- Open a ticket with your server ID and console logs
Known Issue - January 2026
The latest VEIN update (v0.8.5+) changed the save file format. If upgrading from an older version, you may need to wipe saves or use the migration tool in the startup parameters:-MigrateSaves