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Duet Ethernet webserver randomly stops working

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  • undefined
    ShiftingTech
    last edited by 18 Mar 2018, 02:26

    I've been having trouble with my Duet Ethernet: Randomly the webserver stops responding. The web interface indicates that the connection has timed out, and if I attempt to ping the machine's IP, there is no response.

    If I connect a USB cable, and open a serial connection, I find that M552 still reports the connection as up, and M122 reports a nice low Maxreps (generally 4). doing M552 S0, followed by M552 S1 does restore normal function

    I have experienced this problem both on 1.20, and 1.23RC4

    What can I do next to troubleshoot this issue?

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    • undefined
      ShiftingTech
      last edited by 18 Mar 2018, 02:35

      I guess I should also mention my hardware config: It's a Voron 2, so Core XY movement, 4 independent Z motors. I'm using a Duet Ethernet, with a DuetEX5 to run it. 24V power.

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      • undefined
        JohnOCFII
        last edited by 18 Mar 2018, 03:11

        @ShiftingTech:

        I have experienced this problem both on 1.20, and 1.23RC4

        What can I do next to troubleshoot this issue?

        Did you confirm the WiFi software was also updated in addition to the main firmware?

        Take a look at the steps in this document: https://duet3d.dozuki.com/Wiki/WiFi_disconnections_and_AJAX_timeout_errors

        Good Luck!

        John

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        • undefined
          ShiftingTech
          last edited by 18 Mar 2018, 04:35

          I don't believe the duet ethernet uses the wifi software. Am I wrong?

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          • undefined
            Dougal1957
            last edited by 18 Mar 2018, 07:54

            @ShiftingTech:

            I don't believe the duet ethernet uses the wifi software. Am I wrong?

            No your not wrong the Ethernet board does not need the WIFI SW

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            • undefined
              dc42 administrators
              last edited by 18 Mar 2018, 09:15

              Are you using a static IP address in your M552 command, or relying on DHCP? If you are relying on DHCP, please try a static IP address. I identified some issues with the DHCP client for the Duet Ethernet, and although there are fixes for them in 1.21RC5 I am not certain that they are resolved completely.

              Duet WiFi hardware designer and firmware engineer
              Please do not ask me for Duet support via PM or email, use the forum
              http://www.escher3d.com, https://miscsolutions.wordpress.com

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              • undefined
                ShiftingTech
                last edited by 18 Mar 2018, 18:32

                @dc42:

                Are you using a static IP address in your M552 command, or relying on DHCP?

                I've tried both (currently on static) doesn't seem to make a difference.

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                • undefined
                  Catalin_RO
                  last edited by 18 Mar 2018, 21:24

                  Been there already… have you tried a completely different Ethernet cable? I had the very same situation and in the end it was a faulty network cable, but a very tricky fault. Now and then the communication worked as expected, with random drops and not being able to reconnect for 15-20 minutes at a time.

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                  • undefined
                    ShiftingTech
                    last edited by 18 Mar 2018, 23:24

                    Huh. Now that you mention it, I don't think I have tried that. And of course I don't have any more suitable length cables in my house at the moment. Well, I'll grab something and check that as soon as I can…

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                    • undefined
                      JohnOCFII
                      last edited by 19 Mar 2018, 02:39

                      @ShiftingTech:

                      I don't believe the duet ethernet uses the wifi software. Am I wrong?

                      Sorry – just didn't register you had the wired Ethernet and not DuetWifi.

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                      • undefined
                        ShiftingTech
                        last edited by 24 Mar 2018, 00:14

                        So…just as an update here, I moved to 1.21RC5 and the crashes got less frequent, but were still happening occasionally. Then I finally remembered to pickup a new network cable, and it's been stable for 48 hours now. So....fixed, I think!

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