An AJAX error has been reported.



  • Hello,
    I have just received my board (duet wifi with antenna) and was trying to connect to it.
    I have done all the steps in the "1.) Getting Connected to your Duet" and I have connected to DWC but I think there is a problem with this board. I still have the board connected with the USB cable for power. I have not powered it from the printer yet.
    When connected to DWC, I go to settings and then to configuration files, but it just writes "loading", and never loads the files to configure them.
    I then try to upload files and it gives me this error:

    "An AJAX error has been reported, so the current session has been terminated.
    Please check if your printer is still on and try to connect again.
    Error reason: Unknown message type or not authenticated"

    I have changed SD cards in case of it was damaged but still the same.
    What should I do?


  • administrators

    What versions of RepRapFirmware and DuetWebControl are you using?



  • Hi dc 42,

    As the DWC writes:
    "Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
    Firmware Version: 2.05.1 (2020-02-09b1)
    Web Interface Version: HTML: 1.11
    Web Interface by Christian Hammacher
    Licensed under the terms of the GPL v2"

    I do not know what DWC version I use. The standard I think. This oneis taken with print screen.

    12992095-ae4e-4a43-9b63-e167502b86f1-image.png

    Thanks in advance for any help.


  • Moderator

    Please update your DWC version as it is incompatible with your firmware version.

    https://github.com/Duet3D/RepRapFirmware/releases/download/2.05.1/DuetWebControl-SD-2.0.7.zip

    You may have to extract that zip file into your /www folder manually to get it up to date.


  • administrators

    @sigourosandreas, if you go to the Settings page you will find the DWC version displayed there. You can use version 1.22.6 or version 2.0.7.



  • I did what you said. It is working now.

    Thank you for the excellent support!!!


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