Connection timeout



What is the problem?

OctoPrint does not finish its connection process, reporting a timeout and returning to the Offline mode.

What did you already try to solve it?

Re-boot the Pi running OctoPi/OctoPrint. Running OctoPrint in safe mode. Cycling power on the printer.

Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, octoprint.log, serial.log or output on terminal tab, ...)

OctoPrint 1.13.10 running on OctoPi 0.15.0.

I uploaded new firmware to my Prusa MK3S yesterday. However, I've also used the printer several times since the firmware upload without issue. The problem did not raise its head until I powered the printer up and tried to connect this morning.

Serial log attached. I don't have a copy of a successful connection. What is OctoPrint waiting for?

serial.log (1.7 KB)


Resolved: I back out the firmware I loaded yesterday and all is well, again. I'm somewhat confused as to why I had an issue today as I successfully printed after the firmware upload, yesterday. The only difference I can think of is that the failure occurred after cycling power on the printer.