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    DWC suddenly shows only a blank page.

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    Duet Web Control
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    • Crosswireundefined
      Crosswire
      last edited by

      I have a 3D delta printer, not made by me, that suddenly lost the DWC web control interface, a web page is served but only as a blank white screen.
      The printer seems to work otherwise, it is accessible from the local panel and the USB port.

      I have not changed or updated anything on this printer.
      Unfortunately I don't have a backup of the SD card.
      The SD card is still readable.

      I suspect I should replace some files on the SD card, but unsure which ones.
      What can I do?

      From the serial interface:
      FIRMWARE_NAME: RepRapFirmware for LPC176x based Boards
      FIRMWARE_VERSION: 3.3.0_14 ELECTRONICS: LPC176x
      FIRMWARE_DATE: 2021-12-21 12:32:42

      jens55undefined Crosswireundefined 2 Replies Last reply Reply Quote 0
      • jens55undefined
        jens55 @Crosswire
        last edited by

        @Crosswire, don't know if it is related but on occasion I also get a blank page. It resolves itself quickly (might take 2 or 3 reloads). Today I had a blank page that did not resolve itself but I had no trouble with the same page on another computer (it was already loaded).

        1 Reply Last reply Reply Quote 0
        • Crosswireundefined
          Crosswire @Crosswire
          last edited by

          After much browsing, I found this in the Duet3D documentation:

          If the web interface is not working, then move the SD card to a PC, delete or rename any existing /www folder, create a new one, and extract the contents of DuetWebControl.zip into it. Do not unzip the individual .gz files, leave them as they are on the SD card.

          Indeed, that brought the DWC web UI back to life!

          gloomyandyundefined 1 Reply Last reply Reply Quote 0
          • gloomyandyundefined
            gloomyandy @Crosswire
            last edited by

            @Crosswire Glad you got it fixed, you may want to think about getting a new SD card (as your existing one may be on the way out), at the very least make a backup copy of the SD card contents on your PC just in case!

            Crosswireundefined 1 Reply Last reply Reply Quote 0
            • Crosswireundefined
              Crosswire @gloomyandy
              last edited by Crosswire

              @gloomyandy Your advice is taken!

              The old SD was 128MB in size, so probably not that fresh.

              1 Reply Last reply Reply Quote 0
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              • dc42undefined dc42 has marked this topic as solved
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