Skip to content

Common Error Messages

Marko@VMHOMELAB edited this page Jun 13, 2026 · 1 revision

Common Error Messages

Connection refused

The host is reachable, but nothing is listening on the configured port. Check the printer service and port.

Timeout

The Printbuddy host cannot reach the target. Check routing, firewall rules, VLANs, DNS, and printer power state.

401 / 403 Unauthorized

Credentials or tokens are missing or invalid. Check Moonraker tokens, PrusaLink credentials, Prusa Connect tokens, or application permissions.

404 Not Found

The URL path is wrong for the selected provider. Common examples:

  • Using a Fluidd UI URL where a Moonraker API URL is needed.
  • Opening /camera/<id> outside the Home Assistant Ingress base path.
  • Using a PrusaLink endpoint against a non-PrusaLink printer.

Status stays unknown

The connection may open but not receive usable status data. Check provider type, serial number casing for Bambu, and status endpoint responses for Moonraker/PrusaLink.

Permission denied writing data/logs

Check Docker volume ownership and PUID/PGID settings.

Clone this wiki locally