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Server Troubleshooting ​

Common issues and solutions for game servers.

Server Won't Start ​

Check Logs ​

Always start by reviewing logs:

  1. Server Details → Console tab
  2. Look for error messages
  3. Note any "FATAL" or "ERROR" lines

Common Causes ​

Port Conflict

Error: Address already in use (port 27015)

Solution: Change server port or stop conflicting service

Insufficient Memory

Error: Cannot allocate memory

Solution: Increase RAM allocation or free up machine memory

Missing Dependencies

Error: libstdc++.so.6: cannot open shared object file

Solution: Install required system packages

Corrupt Files

Error: Failed to load engine.dll

Solution: Delete server, reinstall fresh

Server Crashes ​

Random Crashes ​

Check System Resources:

  • Is RAM exhausted?
  • Disk space full?
  • CPU temperature high?

Review Crash Logs:

/logs/crash-YYYY-MM-DD-HH-mm-ss.log

Common fixes:

  • Reduce player limit
  • Increase RAM allocation
  • Update game/mods
  • Disable problematic mods

Crashes on Player Join ​

Often mod-related:

  1. Disable all mods
  2. Test if crash persists
  3. Re-enable mods one by one
  4. Identify culprit

Connection Issues ​

Players Can't Connect ​

Verify Server Online:

  • Check status is "Online" in dashboard
  • Server console shows "Ready for connections"

Check Firewall:

bash
# Allow port through firewall
sudo ufw allow 27015/tcp
sudo ufw allow 27015/udp

Test Port Accessibility:

bash
# From another machine
telnet server-ip 27015

Verify IP Address:

  • Public IP, not private (192.168.x.x)
  • Check with: curl ifconfig.me

High Latency ​

Check Network:

  • Machine bandwidth sufficient?
  • Network congestion?
  • DDoS protection active?

Optimize Server:

  • Reduce view distance
  • Lower entity count
  • Optimize tick rate

Performance Issues ​

Low TPS/FPS ​

Identify Bottleneck:

  • CPU usage at 100%? Upgrade CPU or reduce load
  • RAM at capacity? Increase allocation
  • Disk I/O high? Use SSD instead of HDD

Game-Specific Optimizations:

Minecraft:

  • Reduce view-distance
  • Use Paper/Purpur for better performance
  • Limit entity counts

ARK:

  • Lower ClampItemSpoilingTimes
  • Reduce tamed dino count
  • Optimize structure limits

Rust:

  • Reduce world size
  • Lower entity count
  • Adjust save interval

Memory Leaks ​

Server RAM usage grows over time:

Short-term fix:

Schedule daily restart at low-activity time

Long-term fix:

  • Update to latest game version
  • Update/remove problematic mods
  • Report to game developers

Installation Failures ​

SteamCMD Errors ​

Login Failed:

Error: Login Failure: Rate Limit Exceeded

Solution: Wait 15 minutes, retry

Download Stalled:

Update state (0x61) downloading, progress: 45.23%
[Stuck for 10+ minutes]

Solution: Cancel, clear download cache, restart

Invalid App ID:

Error: No subscription

Solution: Verify game App ID is correct

Disk Space Issues ​

Error: No space left on device

Solutions:

  1. Free up space by deleting old backups
  2. Increase disk allocation
  3. Move server to different partition

Mod/Plugin Issues ​

Mod Won't Load ​

Check Compatibility:

  • Game version matches mod version?
  • Mod dependencies installed?
  • Mod conflicts with others?

Review Mod Logs:

/logs/mod-errors.log

Mod Causes Crashes ​

Isolate Problem Mod:

  1. Disable all mods
  2. Enable one at a time
  3. Test after each enable
  4. Remove problematic mod

Check for Updates:

  • Mods often need updates after game patches
  • Subscribe to mod update notifications

Update Problems ​

Update Fails ​

Error: Failed to download update

Solutions:

  • Check internet connection stable
  • Verify sufficient disk space
  • Clear Steam download cache
  • Restart machine

Server Broken After Update ​

Rollback Option:

  1. Restore from pre-update backup
  2. Revert to previous game version (if possible)
  3. Wait for hotfix from developers

Fresh Start:

  • Delete server files
  • Reinstall from scratch
  • Restore world save only

RCON Not Working ​

Can't Connect via RCON ​

Check RCON Enabled:

# Server config must have RCON enabled
rcon.port = 27020
rcon.password = your_password

Verify Port Open:

bash
telnet server-ip 27020

Check Password Correct:

  • No spaces in password
  • Case-sensitive
  • Special characters escaped properly

Database Connection Issues ​

Server Can't Connect to Database ​

For servers with database requirement:

Check Database Running:

bash
systemctl status postgresql

Verify Connection String:

  • Hostname correct?
  • Port accessible?
  • Username/password valid?
  • Database exists?

Test Connection Manually:

bash
psql -h localhost -U username -d database

Getting Help ​

Collecting Debug Information ​

When asking for help, provide:

  1. Server logs (last 100 lines)
  2. Error messages (exact text)
  3. Server configuration
  4. Game version
  5. Mod list (if applicable)
  6. Steps to reproduce

Support Channels ​

Reporting Bugs ​

Include in bug reports:

  • Arcadium version
  • Agent version
  • Game and version
  • Expected vs actual behavior
  • Error logs

Next Steps ​

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