Error uploading to print host: Operation timed out

[BrentEBeebe]

I'm new to OrcaSlicer, trying to get it to print a loaded design.

When I try toUpload and print, I get "Error uploading to print host: Operation timed out".

But if I test the connection, it says "Connection to Flashforge works correctly".

Screen captures below. Suggestions appreciated. Looks like a great tool and I look forward to using it versus the "came with the printer" tools I have now.

[DarrylBarney]

I have the same issue - same error message when uploading, same result - Printer is also Flashforge Adventurer 3

[ThomasB-G]

Same issue, works with test connection but after a few seconds while its uploading it just stops and gives this error. Printer is a Flashforge Adventurer 5m

[RyantHults]

I am seeing the same thing on my flashforge A5M. It looks like if the file is small enough to finish before the timeout is hit, it'll work anyways, but otherwise it times out and cancels the print. I am on the latest official firmware (2.7.2-2.3.2)

[xlordxcheater]

Same here. A5M, connected via WiFi. The uploading starts but no progress and after +-10secs, the error message pops out. Im in the latest firmware and latest orcaslicer version.

[masonare123]

same here adventure 5m

[N3dFlow]

Same here using a "Marlin" printer and Orca 2.2.0. I use MKS to connect, upload and print are fine but once the upload is finished, I still get the error "Error uploading to print host: Operation timed out"

[joshuajohncohen]

Same issue

[doron007]

Same issue, though I observed this is only with larger files. Small file would upload successfully.
Is there a config file where we can increase the timeout?

[ovakisan]

Same issue here, over ethernet or wifi, the same. I had that issue with the original Flashforge Slicer so it seems it is on the printer side

[AndiRudi]

I have the same issue. The printer seems to react. It shows "Send the file: 0%" then quickly jumps to "Send the file: 100%".

[Hevdelurn]

(Edit: After testing more files, it seems to work most of the time, still a lot better than none.)

If you can send smaller files just fine and it's just larger ones that seem to fail, then I have solved this issue!

You need to adjust the "sending_interval" in your OrcaSlicer.conf file.
Close OrcaSlicer
Go to: C:\Users<your name>\AppData\Roaming\OrcaSlicer
Open OrcaSlicer.conf in a text editor
Scroll down or search for "sending_interval"
Mine was set to 5, I changed it to 100 and it worked perfectly.
Save and close.