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Octoprint - Offline after errror  

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BoxdelleIdee
(@boxdelleidee)
New Member
Octoprint - Offline after errror

Good morning,
i have a prusa mk3s + with firmware 3.9.3-3556. I have a raspberry pi 3 on which I have installed the updated Octoprint. I connected the raspberry with the printer via USB port (using different cables), but I always get this message:

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Changing monitoring state from "Offline" to "Detecting serial connection"
Performing autodetection with 7 port/baudrate candidates: /dev/[email protected], /dev/[email protected], /dev/[email protected], /dev/[email protected], /dev/[email protected]8400, /dev/[email protected], /dev/[email protected]
Trying port /dev/ttyACM0, baudrate 115200
Connecting to port /dev/ttyACM0, baudrate 115200
Handshake attempt #1 with timeout 2.0s
Connected to: Serial<id=0x6bc402d0, open=True>(port='/dev/ttyACM0', baudrate=115200, bytesize=8, parity='N', stopbits=1, timeout=2.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
Send: N0 M110 N0*125
Recv: start
Changing monitoring state from "Detecting serial connection" to "Operational"
Send: N0 M110 N0*125
Communication timeout while idle, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N1 M115*39
Communication timeout while idle, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Send: N2 M21*18
No response from printer after 3 consecutive communication timeouts, considering it dead. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Changing monitoring state from "Operational" to "Offline after error"
Connection closed, closing down monitor

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I have verified that the USB port is the correct one

Can you help me in any way? I also changed Raspberry but with the same result .... nothing

Diego

Posted : 08/05/2021 8:34 am
towlerg
(@towlerg)
Noble Member
RE: Octoprint - Offline after errror

Might I suggest you post same on Octoprint board?

Posted : 08/05/2021 10:33 am
Dan Rogers
(@dan-rogers)
Noble Member
RE: Octoprint - Offline after errror

Pah.  That happens if you click the X button.

 

Posted : 10/05/2021 6:09 am
markushohoprusa
(@markushohoprusa)
New Member
RE: Octoprint - Offline after errror

Hi BoxdelleIdee!

I had exactly the same issue and for me it was a very simple oversight, fixed by this:
https://community.octoprint.org/t/octoprint-wont-connect-to-my-prusa-mk3/13532

Just set RPi port to "Off" in the Prusa settings. Not intuitive, I know, but this is only needed if you connect to the RasPi through GPIO (which I did before changing to USB)

If that does not help, there are many different other causes, hard to debug. Starts with under-powered Raspi, goes over bad USB cable or malfunctioning USB ports on the RasPi and doesn't end with too short handshake timeouts.

Hope that helps!

@dan-rogers

Not helpful. Just saying.

 

Posted : 16/06/2021 8:58 pm
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