Starting Octoprint on PC causes Prusa to restart

What is the problem?

I had Octoprint running for months with no issues. I had to switch Raspberry's - I was on a B3+, now it's on a B3. I reinstalled Octoprint on a new SD. No other changes. When I start Octoprint on my PC, the Prusa i3 MK3S+ restarts. I see this for State on the PC:
State: Offline after error
No more candidates to test, and no working port/baudrate combination detected.

What did you already try to solve it?

It's a clean install with no plugins yetso I don't know what to check.

Have you tried running in safe mode?

not sure how.

Did running in safe mode solve the problem?


Systeminfo Bundle

You can download this in OctoPrint's System Information dialog ... no bundle, no support!)


Additional information about your setup

OctoPrint version=the latest, OctoPi version=the latest, printer=Prusa i3 MK3S+, firmware=DK, browser=firefox, operating system=Win10,


you mean when you open the webinterface, right?

well we don't really know what happened because you didn't include a systeminfo bundle :wink:

Just to make sure that I have understood everything correctly: the pi was connected to the printer and as soon as you opened the webinterface it disconnected, the printer restarted and you got offline after error, right?

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