RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
I have, but it's not very helpful. 2.9.3 has this line:
[2025-09-30 21:12:43.110891] [0x00000001eea660c0] [error] OctoPrint: Error getting version: Couldn't connect to server:
that 2.9.2 doesn't when I click Test for that physical printer.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
Hmm, this must be a problem specifically on MacOS. Are there any other MacOS users here who are using PrusaSlicer 2.9.3?
After I installed PrusaSlicer 2.9.3 on my Debian system and started it for the first time, it only had selected one of the generic printer profiles instead of one of my configured physical printers. After changing to the correct physical printer everything worked as before.
I can remember that on a previous update of PrusaSlicer some time ago the host type on the configured physical printers was changed from "OctoPrint" to "PrusaConnect" or "PrusaLink". Are you sure that the host type is still set to "OctoPrint"? Other than that I can't think of anything else to try.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
It is still set to Octoprint.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
What do you have in the textbox for hostname, an IP address, a hostname, e.g. octoprint.local, or an URL that starts with "http(s)://"?
I have just an IP address, nothing else.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
192.168.1.127:5000
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
Have you tried omitting the ":5000" part? As I said I have only the IP address of the RaspberryPi in there "192.168.95.107" no port number or anything else.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
I have. No change.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
Can you try to put "192.168.1.127:80" in there? If I try to access the URL "http://192.168.95.107:5000" in Chrome I get a "connection refused" error, although this is the default port for OctoPrint without a working haproxy. If I try "http://192.168.95.107:80" my request is redirected to the OctoPrint web interface the same as when I try "http://192.168.95.107" without the port number.
This still does not explain why it works with version 2.9.2 though ...
Does your RaspberryPi run a version of OctoPi or some other base OS with OctoPrint installed on top of it?
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
:80 did not work. It's running on top of Debian at the moment but setting up a Pi is on my list.
RE:
In recent Mac OS you may need to go the System Preferences and allow app to access local networks https://support.apple.com/en-gb/guide/mac-help/mchla4f49138/mac
Also default port for http:// protocol is port 80 so if tou omit it in the address it is silently assumed when creating a new connection.
See my GitHub and printables.com for some 3d stuff that you may like.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
The OS settings already allow PrusaSlicer to caccess the LAN. But I toggled it off and on anyway, restarted, and still no success. Also tried specifying http:// explicitly for both ports (5000 and the default) to no joy.
RE: Upgraded to PrusaSlicer 2.9.3 - Can't Upload GCode to OctoPrint anymore
Beyond my understanding:
Suddenly, 2.9.2 began to fail connecting just like 2.9.3. I closed and restart 2.9.2, and it still failed, but I got prompted to allow to find/discover devices on the local LAN. I of course said yes. And it worked. And 2.9.3 works now too (or at least the Physical printer test does). SMH.
Looked at the OS Settings (Network/Local Network) and they look the same to me (PrusaSlicer appears twice, and both are on).