Octoprint stop working after reboot

[Calebe_Gomes]

What is the problem?

After reboot Octoprint or power off the Raspberry (mine is a PI 3B+), Octoprint didn't restart. Some seconds after power on the Raspberry, I can see its IP in my Network, but after a short time, it disappears. It seems that it starts the boot system, but can't go on.

What did you already try to solve it?

I tried turn off and turn on the Raspberry, but not working. The only solution for me until now is flashing again the firmware. But it is so annoying, because I need to format the SD card, reinstall the Octoprint and re-configure over and over again. I would like to know a solution that is no need more reinstall the system.

Complete Logs

octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)

WRITE HERE

Additional information about your setup

OctoPrint 0.17.0, OctoPi 0.17.0, Ender 3 Pro, Marlin, Google Chrome, Windows 10. Pi 3B+ is connected by ethernet cable to my Asus Router.

[Ewald_Ikemann]

Hello @Calebe_Gomes!

Do you access via LAN or WiFi?
Maybe it's just a Wifi issue.

@Calebe_Gomes

I need to format the SD card

There is no need to format the SD card. Just flsh OctoPi on it and you are good to go.
Maybe edit your WiFi parameters.

[Calebe_Gomes]

Hello @Ewald_Ikemann!
I am connected via LAN, not WiFi. I just have flashed again the OctoPi. I can try reboot and see if the same error occurs.

[PrintedWeezl]

Try it without a connected printer.
I guess it's a power related problem.

[Calebe_Gomes]

@PrintedWeezl, good idea! I will try this. Thanks!!

[Calebe_Gomes]

@PrintedWeezl it worked!! I reboot and after shutdown the system without connected printer. I have to remember do it every time I shutdown and power off the Pi. Or print a object I watched in a Youtube that isolates Ground and V pins from USB plug. Thank you guys for this help!

[PrintedWeezl]

@Calebe_Gomes

I have to remember do it every time I shutdown and power off the Pi

You could also turn your printer on before turning your pi on

PS: I also made a guide

Put tape on the 5V pin - Why and how

First of all this whole tutorial isn't a mandatory mod - you just need it if you run into issues (weird things are happening and you've already ruled out the more common suspects) or if the always running fan and illuminated display (even when the printer is turned off) disturbes you. I'm starting with the why part: If you connect a 3D printer via USB to your Raspberry Pi it can lead to all sorts of power related issues. Most of the time those issues occur only if you turn on your pi before…

[Calebe_Gomes]

@PrintedWeezl thank you again for your guide. I will do this. But I had this same issue and this time I turn on the Pi without printer, camera even a fan that I connected into GPIO. Do you think I need flashing again the firmware?

[PrintedWeezl]

It's possible that those hard reboots damaged the file system - in that case reflashing the image would help.
Which psu are you using for your pi? An insuffuficient psu could also cause this kind of problems.

[Calebe_Gomes]

Ok. I will reflash it. I am using the power supply that came with the Pi when I bought it. This spec is 5V 2.5A. Maybe it is better change this PSU for another or connect to my printer PSU using a step down module. What do you think?

[PrintedWeezl]

If your psu is really the problem it would help.
You could check your octoprint.log s for undervoltage warnings.