What is the problem?
Not sure. This has happened twice with a print of the same model, but different gcode. The first failure happened with a print (DeadpoolChibi_Head.gcode) that was ~3hours in the second time this happened when a print ( (DeadpoolChibi_Head_Fine.gcode) was ~6hours in. Both times this was near completion of the print (about 80%) and seemed to happen the instant when I opened octoprint from the browser on my phone via remote network access (i.e. internet instead of local network). I'm 90% sure it happened exactly when I accessed from my phone via remote network / internet.
What did you already try to solve it?
Nothing yet. Looking for ideas. Seeing a lot of "wrong checksum" messages during print.
I've printed this model with success multiple times. I don't think it's the gcode because it's happened with 2 different gcode files (the same model at different layer heights / settings).
Additional information about your setup
OctoPi 0.15.1 (RPi 3 B+ with 3Amp PSU, Printer does have relay switch powered by the printer's PSU and controlled by the Pi)
Monoprice Maker Select V2 Connected at 115200
FIRMWARE_NAME:Repetier_0.91 FIRMWARE_URL:https://github.com/repetier/Repetier-Firmware/ PROTOCOL_VERSION:1.0 MACHINE_TYPE:Mendel EXTRUDER_COUNT:1 REPETIER_PROTOCOL:2
(yes I know I need to update)
Log during failure:
octoprint-2018-09-09.log (148.5 KB) -- Failure happened after line 3788 in hte log and there's a bunch of NUL characters in the log.
Just shooting in the dark, I guess I'll finally update my firmware (not looking forward to that). But again I really think the issue is with connecting via the internet somehow. Though I can't reproduce unless the printer's been running for a while which is not fun to try...
All help welcome!