Upload fails when G-code filename contains Chinese characters (Error 55) #1298

New Issue

MrUnknownDE · 2026-04-05T17:14:39+02:00

MrUnknownDE commented

2026-04-05 17:14:39 +02:00

Originally created by @hamoyy on 12/23/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1

Operating System (OS)

Windows

OS Version

Windows 11

Additional system information

No response

Printer

Creality Ender-3 V3 KE 0.4

How to reproduce

1.Slice any model in OrcaSlicer.

2.Click "Export" or "Upload" to send the G-code to a Creality printer via network.

3.Give the file a name that includes Chinese characters (e.g., "实体3_PETG.gcode").

4.Click "Upload".

5.An error message pops up: "curl: Failed sending data to the peer: Send failure: Connection was aborted [Error 55]".

6.If I rename the file to pure English/alphanumeric characters, it uploads successfully

Actual results

The upload fails with [Error 55] when the filename contains Chinese characters.

Expected results

The file should be uploaded successfully regardless of whether the filename contains Chinese characters.

Project file & Debug log uploads

debug_Tue_Dec_23_09_44_22_26944.log

Checklist of files to include

Log file
Project file

Anything else?

It seems like an encoding issue with the upload path or the curl command when interacting with the CrealityPrint host type.

*Originally created by @hamoyy on 12/23/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1 ### Operating System (OS) Windows ### OS Version Windows 11 ### Additional system information _No response_ ### Printer Creality Ender-3 V3 KE 0.4 ### How to reproduce 1.Slice any model in OrcaSlicer. 2.Click "Export" or "Upload" to send the G-code to a Creality printer via network. 3.Give the file a name that includes Chinese characters (e.g., "实体3_PETG.gcode"). 4.Click "Upload". 5.An error message pops up: "curl: Failed sending data to the peer: Send failure: Connection was aborted [Error 55]". 6.If I rename the file to pure English/alphanumeric characters, it uploads successfully ### Actual results The upload fails with [Error 55] when the filename contains Chinese characters. <img width="908" height="492" alt="Image" src="https://github.com/user-attachments/assets/e145db96-06c7-44e1-b57b-209129da2b0a" /> <img width="711" height="371" alt="Image" src="https://github.com/user-attachments/assets/1061b630-8651-42d7-ad3f-75e88e180335" /> ### Expected results The file should be uploaded successfully regardless of whether the filename contains Chinese characters. ### Project file & Debug log uploads [debug_Tue_Dec_23_09_44_22_26944.log](https://github.com/user-attachments/files/24306408/debug_Tue_Dec_23_09_44_22_26944.log) ### Checklist of files to include - [x] Log file - [ ] Project file ### Anything else? It seems like an encoding issue with the upload path or the curl command when interacting with the CrealityPrint host type.

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Reference: github/OrcaSlicer#1298