SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[Juan_Carlos_Hurtado]

Hello Good morning, first of all I wish you a happy Christmas season.
I am trying to install and run a program called Octoprint on Windows that would allow me to remotely control our Ender 3 Pro printers. The installation is carried out following the steps of video tutorials and manuals that I have found on the net and apparently it has been carried out satisfactorily. But there is always a but...

The system recognizes the printer correctly, COM port and baud rate but when I give the option to print (without loading in the SD) the port is disconnected so I can't have control of the printer.

If I load the stl file on the SD and give the option to print with octoprint, it prints but there is no control over printing (it's as if I had given print locally to the printer, having no control over it if I'm remotely ).

If any member of this community could help me I would be very grateful.
Best regards.

[Charlie_Powell]

Hello @Juan_Carlos_Hurtado!

This post is more suited to the 'Get Help' category, so I moved it there (instead of 'General').

Could you please add the systeminfo bundle so that we are able to see what is going on in your OctoPrint install & provide more details of what your setup is.

What is a Systeminfo Bundle and how can I obtain one?

Since OctoPrint 1.6.0, you can download a Systeminfo Bundle from the System Information dialog that you'll be asked to provide for support requests and bug reports. [image] Always provide a Systeminfo Bundle when requesting support here on these forums or when opening a bug report on GitHub. Without the information in your Systeminfo Bundle we won't be able to help you! You can upload these bundles on the forums and attach them to GitHub Issues. How to download a Systeminfo B…