Project Zomboid Server Troubleshooting

Sandbox Changes Not Applying

Delete map_sand.bin from the save folder and restart. This forces the server to reload sandbox settings.

Mods Not Loading

• Use semicolons (not commas) in Mods= and WorkshopItems=
• Workshop IDs and Mod IDs are different — get both from the mod page
• B41 mods don't work on B42

"Failed to Connect"

• Check ports 16261 + 16262 (UDP) are open
• Verify password if set

Can't Become Admin

Run setaccesslevel PlayerName admin in the server console before the player connects.

B42 Memory Issues

B42 requires 8-9GB+ RAM. Reduce population multiplier if needed.

Related Guides

• Server Configuration
• Admin Commands
• Performance Guide