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Duet Ethernet web control suddenly stopped connecting

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Duet Hardware and wiring
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  • undefined
    Ak Eric
    last edited by 30 Sept 2018, 02:19

    I've been using My Duet Ethernet successfully for around a year now.
    Last night, mid print, I could no longer connect to it over the Duet Web Control (my normal means of interface), which was how I started the print (like normal). But I have the LCD, and everything finished fine including a filament swap.

    Today, after rebooting my PC, router, and my Duet, I still can't connect. I have it assigned to a static IP via my router, and by going into my router settings, it clearly says that 'Duet Ethernet' is connected on the expected port. But when I go to that address in Chrome I get a:
    "
    This site can’t be reached
    10.0.0.254 refused to connect.
    "
    Also, the little 'blue drop' icon for it, that normally I see in my shortcut bar is missing.

    Any idea what has gone wrong and how I can address this? I recently upgraded it to 2.0x, and it's done probably 60 hours of printing until this happened.

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    • undefined
      Ak Eric
      last edited by 30 Sept 2018, 02:20

      I've tried pinging it, seems to be responding?

      C:\Users\Blah>ping 10.0.0.254

      Pinging 10.0.0.254 with 32 bytes of data:
      Reply from 10.0.0.254: bytes=32 time<1ms TTL=128
      Reply from 10.0.0.254: bytes=32 time<1ms TTL=128
      Reply from 10.0.0.254: bytes=32 time<1ms TTL=128
      Reply from 10.0.0.254: bytes=32 time<1ms TTL=128

      Ping statistics for 10.0.0.254:
      Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
      Approximate round trip times in milli-seconds:
      Minimum = 0ms, Maximum = 0ms, Average = 0ms

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      • undefined
        dc42 administrators
        last edited by dc42 10 Jan 2018, 07:02 30 Sept 2018, 09:17

        Are you quite certain that it is the Duet that is responding to the ping and not something else? You could have an IP address conflict. Test the ping again, then disconnect the Duet's Ethernet cable and test it again.

        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
          Ak Eric
          last edited by 30 Sept 2018, 15:40

          Thanks David. I work in tech, and sometimes it's amazing what simply waiting a day will do when the build is broken...

          Fired everything up this AM with no changes and now, it's responding as expected. No changes other than simply turning everything off/wait 12 hours/ on.
          According to my router's control panel yesterday, when inspecting all connected devices, there was only one with that IP (it's the only static ip i have, other than my Octopi that's not on), and nothing else's adderss was even close to that range. And not that it couldn't happen, but I've never had a IP conflict like that in the past.

          So, I'm glad it's working! Just wish I knew what caused this...

          One thought: Is it possible it is in some way password related? I have a password on it. When starting it this AM, as usual it asked for the password, which I had auto-fill from my Chrome's memory, and it said password was incorrect. Reloaded the page with F5, entered the same password again, and it let me in. Just a thought to troubleshoot...

          Thanks for your thoughts David

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          • undefined
            Cactacae
            last edited by 30 Sept 2018, 19:56

            I'm having a very similar issue with the Maestro running 2.01. It pings and telnet works, but http is intermittent. Some times it works on power-on and sometimes it doesn't.
            M122 reports that http is enabled and doesn't seem to report anything unusual.

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            • undefined
              fundix
              last edited by 18 Apr 2019, 14:46

              same problem ERR_CONNECTION_TIMED_OUT

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              • undefined
                jay_s_uk
                last edited by 18 Apr 2019, 14:50

                I get the same issue too. After about 2 - 3 hours into a print, I can no longer connect to the duet. It's dropped off my network.
                I've tried the "reboot the router" trick to no avail.
                As I don't have a screen, I just have to keep an eye on it until its done. So far, each print has finished without issue, but it's a bit annoying when I want to see how long a print has got left.

                Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

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