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Printer Connection Issues

Marko@VMHOMELAB edited this page Jun 13, 2026 · 2 revisions

Printer Connection Issues

Troubleshoot printer connections by following the request path from Printbuddy to the printer.

1. Confirm provider type

Use the correct provider:

  • Bambu Lab for Bambu local access.
  • Klipper, Fluidd, or Mainsail for Moonraker.
  • PrusaLink for local PrusaLink.
  • Prusa Connect for cloud/mobile API.

2. Test from the Printbuddy host

Moonraker example:

curl -v http://<printer-ip>:7125/server/info

PrusaLink example:

curl -v http://<printer-ip>/api/v1/status

Camera example:

curl -I '<camera-url>'

3. Check credentials

Redact credentials, but verify:

  • Bambu access code and serial number.
  • Moonraker token if enabled.
  • PrusaLink credentials/secret.
  • Prusa Connect token.

4. Check logs

docker compose logs --tail=200 printbuddy

Look for HTTP status codes, refused connections, DNS failures, and timeout errors.

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