Jump to content
Ultimaker Community of 3D Printing Experts

Suddenly will say "Failed to Establish Connection with the Printer"


twipwip
 Share

Recommended Posts

Posted · Suddenly will say "Failed to Establish Connection with the Printer"

All of a sudden, my computer will just stop being able to connect to my printer. I get the "failed to establish connection with the printer" error.. However, when I plug in the ultimaker with my USB cable, I get the "ba-dum" sound from windows, and everything is plugged in (I can hear the fan running).

It's strange, this will actually happen while I'm testing it. For example, while I'm doing one of the alignment runs, the block temperature will start rising, and then all of a sudden just stop.

Error log:

Changing monitoring state from 'Offline' to 'Detecting serial port'

Serial port list: []

Failed to open serial port (AUTO)

Changing monitoring state from 'Detecting serial port' to 'Error: Failed to autodetect...'

 

  • Link to post
    Share on other sites

    Posted · Suddenly will say "Failed to Establish Connection with the Printer"

    This happens to me a lot so I usually print with the ulticontroller. Much more reliable.

    I don't have an answer for you, sorry. Oh - I found it helps if I set the print temp to 0 because it most often loses connection when waiting for print head temperature to stabilize.

     

  • Link to post
    Share on other sites

    • 2 weeks later...
    Posted · Suddenly will say "Failed to Establish Connection with the Printer"

    Well, much the same with me. I run a print, then if I want to run a second print, I get "Serial Timeout exception" and the machine cannot connect anymore. Unplugging the usb cable, turning off the printer, restarting CURA, nothing works except a total restart of the computer.

    Pronterface works all the time though....any ideas?

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
     Share

    • Our picks

      • The Ultimaker Showcase — October 14. What's new?
        Your dear friends at Ultimaker have some exciting news and insights for you!
         
        • 0 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 8 replies
    ×
    ×
    • Create New...