Error when attempting to upload files to 3D printer #2316

New Issue

MrUnknownDE · 2026-04-06T03:49:51+02:00

MrUnknownDE commented

2026-04-06 03:49:51 +02:00

Originally created by @dgmoney43 on 8/31/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.0

Operating System (OS)

Windows

OS Version

Windows 11

Additional system information

No response

Printer

Neptune 4 Max

How to reproduce

Upload and print

Actual results

Error uploading to print host:
HTTP 502: <html>

502 Bad Gateway

nginx/1.14.2 </html>

Expected results

Begin Print

Project file & Debug log uploads

debug_Sun_Aug_31_19_32_47_28832.log.zip

swolepikachu_full.zip

Checklist of files to include

Log file
Project file

Anything else?

For context, this happened last night when attempting to print a large helmet model. Printer began making alarm sounds and there was a klipper error that resulted in me having to restart the entire printer.

Printer works when uploading files that are directly in its storage, just not working on Orca.

*Originally created by @dgmoney43 on 8/31/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.0 ### Operating System (OS) Windows ### OS Version Windows 11 ### Additional system information _No response_ ### Printer Neptune 4 Max ### How to reproduce Upload and print ### Actual results Error uploading to print host: HTTP 502: <html> <head><title>502 Bad Gateway</title></head> <body bgcolor="white"> <center><h1>502 Bad Gateway</h1></center> <hr><center>nginx/1.14.2</center> </body> </html> ### Expected results Begin Print ### Project file & Debug log uploads [debug_Sun_Aug_31_19_32_47_28832.log.zip](https://github.com/user-attachments/files/22069259/debug_Sun_Aug_31_19_32_47_28832.log.zip) [swolepikachu_full.zip](https://github.com/user-attachments/files/22069269/swolepikachu_full.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? For context, this happened last night when attempting to print a large helmet model. Printer began making alarm sounds and there was a klipper error that resulted in me having to restart the entire printer. Printer works when uploading files that are directly in its storage, just not working on Orca.

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Notifications

Due Date

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Dependencies

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Reference: github/OrcaSlicer#2316