Bambu Lab 3D Printers Troubleshooting Guide

Solution: Verify that the entered Access Code is correct and the printer IP settings are properly configured. Ensure necessary ports (8883, 990, 322) are open. Use “Forget network printer” or "Edit printer list" in the 3DPrinterOS client interface and re-add the printer.

Solution: Verify FTP ports (990, 50000-50100) are open. Update firmware to the latest version. If errors persist, restart the printer and client to clear transient network issues.

Solution: Assign one Raspberry Pi (Cloud client) per printer for stable connections and proper camera function. A general guide on how many printers can be connected to a single host device can be found here.

Solution: Confirm network connectivity and enable LAN Only Mode on the printer. Enter the IP address, Access Code, and serial number in the 3DPrinterOS Client. If issues persist, enable Verbose Mode, attempt to reconnect, and report the logs to support.

Solution: Remove existing printer entries using "Forget network printer" or "Edit printer list" in 3DPrinterOS. Re-add the printer using the IP, Access Code, and serial number.

Solution: Use a dedicated Raspberry Pi or any other separate Cloud client host for each printer to prevent conflicts and ensure stable connections. A general guide on how many printers can be connected to a single host device can be found here.
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Solution: Update the 3DPrinterOS client to the latest “Testing” or “Beta” version. Verify network settings, especially DNS and firewall configurations, to ensure uninterrupted connectivity.

Solution: Use the latest Testing version of the 3DPrinterOS client. Enable “LAN Mode Liveview” in the printer settings, restart the printer, then select the correct camera within the client. Assign the correct camera when multiple cameras are connected to one host.

Solution: Manually reassign the correct camera in printer settings within 3DPrinterOS, then restart the camera module via the 3DPrinterOS client.

Solution: Bambu printers fully support 3DPrinterOS with the latest firmware. Enable Developer Mode in printer settings to maintain compatibility with third-party services like 3DPrinterOS.

Solution: Disable filament tracking in printer settings within 3DPrinterOS Cloud. Use single-spool mode or manually select AMS slot at print initiation. 3DPrinterOS AMS guide.

Solution: Enable the auto-refill option via Bambu Studio or Orca Slicer before sending the job through 3DPrinterOS

Solution: AMS slot selection is available only at the print initiation stage. Queue the job and clearly document the AMS slot requirements in the job notes until this feature is implemented.

Solution: Assign a static IP address to each printer by binding their MAC addresses in router settings to prevent IP changes after restarts

Solution: Verify the printer’s IP address is correct and set as static on your router to prevent changes after restarts. Restart the printer and the 3DPrinterOS Client, and ensure they are updated to the latest version.

Solution: Ensure network allows traffic on essential ports: MQTT (8883), FTP (990, 50000-50100), and camera streams (322 for X1 series, 6000 for P1/A1 series). If using advanced firewall rules, explicitly whitelist these ports.

If you have attempted these troubleshooting steps and are still experiencing issues, please report the problem to provide us with detailed logs. You can do this from the Cloud by clicking the three dots beside your printer and choosing "Report Printer Issue"

or from the Client by clicking on "Report problem".

If you require additional assistance, you can reach out to illia@3dprinteros.com or use the support chat in the bottom right corner.