OctoPrint is disconnecting - Prusa MK3S+

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1

What is the problem?

I was able to connect with OctoPrint to my MK3S+, but after some time I gen disconnected.
I tried to send Bed temp to set on printer but nothing is happening.

What did you already try to solve it?

No idea how.

Have you tried running in safe mode?

Yes

Did running in safe mode solve the problem?

No

Systeminfo Bundle

octoprint-systeminfo-20220712190200.zip (103.4 KB)

Additional information about your setup

OctoPrint version 1.8.1, OctoPi version 0.18.0, printer, firmware 3.11.0-4955, browser chrome, operating system Windows 11, Raspberry Pi 4B, connected directly onto the EINSY board

Logs:
octoprint.log (15.9 KB)
serial.log (4.2 KB)

Please help.

Regards,
Lukasz

2

There is a lot of communication corruption going on:

| Recv: Resend: 1
2022-07-12 18:55:20,073 - octoprint.util.comm - WARNING - Received an error from the printer's firmware: Line Numb每每驴聺職聼7路每脣聥毛脢k陆颅)每媒茂禄每驴媒每聲職陆聭聲鹿)脽k
| Last lines in terminal:
| Recv: Ezror:line Number 每驴没煤每陆媒g聺m搂漏kK酶o卤脽k锚路颅毛k鹿聛聧陆碌碌聟鹿聭茅脕LQ聟PPPp"(2)
| Recv: ok
| Send: N11 M105*23
| Recv: Error:No Line Number with checksum, Last Line: 0
| Recv: Resend: 1
| Recv: ok
| Send: N1 M115*39
| Recv: 玫每W驴驴毛茅驴職卢聥芦氓R煤颅)每o贸nK每路颅毛k霉聣脥陆碌碌聟鹿聭茅聛L脕YPU@p"(2)
| Recv: ok
| Send: N2 M21*18
| Recv: Error:No Line Number with checksum, Last Nine潞 0*Resund: 1
| Recv: ok
| Send: N3 M105*36
| Recv: echo:Unknown command: 脻ma庐虏聺聬脩*'楼鲁聯颅j驴路碌霉echo:Unknown command: "ok"(2)
| Recv: ok
| Send: N4 M105*35
| Recv: echo:Unknown command: "eco:Un-command: "(2)
| Recv: ok
| Send: N5 M105*34
| Recv: Error:Line Numb每每驴聺職聼7路每脣聥毛脢k陆颅)每媒茂禄每驴媒每聲職陆聭聲鹿)脽k

Something is probably interfering with the connection. Check all the wiring for issues, and routing of the cables is important to avoid noisy communication.

3

Ok, so I think, I have found an issue. Power needs to be connected to the printer, I was using an external source.

4

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