PrusaSlicer stopped uploading gCode to OctoPrint

[DaveGadgeteer]

What is the problem?

PrusaSlicer used to allow uploading the gcode to OctoPrint and started printing it if it wasn't busy.
Now I always get a timeout error 28.

What did you already try to solve it?

I restarted my Mac and my Raspberry Pi, Browsed to see OctoPi is running. Checked the special code is known by PrusaSlicer. Uploading the gCode file manually from a disk file works fine.

Have you tried running in safe mode?

Yes

Did running in safe mode solve the problem?

No

Systeminfo Bundle

You can download this in Processing: systeminfo.txt... ... no bundle, no support!)

haproxy.log (243 Bytes)
octoprint.log (58.6 KB)
plugin_softwareupdate_update.log (179 Bytes)
serial.log (148 Bytes)
WRITE HERE

Additional information about your setup

OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible

WRITE HERE

[paukstelis]

It is most likely you need to make sure that PrusaSlicer has the appropriate settings for your OctoPrint installation. Check the settings of your physical printer by clicking on the gear:

[DaveGadgeteer]

Today, with no further effort made to debug the problem, it just started working again.
I did turn on wifi on my laptop because of other network problems this morning, so perhaps there's been something wrong in my network. But I had been seeing the camera view, and was able to use OctoPrint to upload and print files, so I don't see how the wifi could have mattered.
Usually my laptop is on Ethernet.