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    Constant 'connection interrupted'

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    • Phaedruxundefined
      Phaedrux Moderator
      last edited by

      The SSID would be duet according to your image.

      Z-Bot CoreXY Build | Thingiverse Profile

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      • Fodenundefined
        Foden
        last edited by

        Yes, 'DUET' sorry, does not show, which I presume isn't a good sign

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        • Phaedruxundefined
          Phaedrux Moderator
          last edited by

          Does the module light up when in ap mode?

          Z-Bot CoreXY Build | Thingiverse Profile

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          • Fodenundefined
            Foden @Phaedrux
            last edited by

            @Phaedrux Yes it does

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              And nothing shows up on your phone or laptop?

              Z-Bot CoreXY Build | Thingiverse Profile

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              • Fodenundefined
                Foden
                last edited by

                Nothing new at all

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  Could be a failing module. Do you have the means to replace it?

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • Fodenundefined
                    Foden
                    last edited by

                    Not really, would need hot air soldering tool and at least the WIFI module I guess. Not something I've done before, have soldered quite a lot but don't fancy completely frying the board though. Probably have to live with it until it dies and then figure something out. Do you know off-hand if the WIFI module is still either ESP-12S or ESP-07S (from an old dc42 post)

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                    • Fodenundefined
                      Foden
                      last edited by Foden

                      OMG - I'm sooooo sorry about the AP test. Seems my brain is stuck in DFU mode as I did NOT send M552 S2 to enable the AP SSID. Oddly enough when I do i can see it. I was able to sign into it briefly too

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                      • Fodenundefined
                        Foden
                        last edited by Foden

                        Able to sign into in on my laptop, but still get drops

                        I noticed in the diagnostics that i do NOT see what I should, I see

                        WiFi Vcc 3.45, reset reason Unknown

                        rather than

                        WiFi Vcc 3.42, reset reason Turned on by main processor

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                        • Fodenundefined
                          Foden
                          last edited by Foden

                          Although there weren't any reported issues with either sd card I reformatted my 32Gb one, 64k clusters and did NOT use the quick option and then copied back the files. Left the Duet off overnight, plugged in the sd card and powered it on and left it alone for an hour - 0 drops - ran a couple of G39's to warm up the MCU and again 0 drops
                          (forgot to mention Duet is enclosed in a case with a fan for cooling-https://www.thingiverse.com/thing:2812834)

                          Had more drops now, very few when it's completely idle. Just for shiggles I plugged in a WiFi extender right next to the printer. Once firmware has been updated we'll see if that makes any difference

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                          • Phaedruxundefined
                            Phaedrux Moderator
                            last edited by

                            So it seems like an SD card issue?

                            Z-Bot CoreXY Build | Thingiverse Profile

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                            • Fodenundefined
                              Foden @Phaedrux
                              last edited by

                              @Phaedrux Sadly no, even when the printer is idle I get drop outs. I have a Wi-Fi extender 12" away from the Duet, and it's connected to it. Still get drop outs. Connection stats for the Duet to the Wi-Fi extender are -21dbm 53Mbps.

                              So.... looks like your initial prognosis was correct 😖 Wi-Fi module is fubar'd and on it's way out and needs to be replaced 😞

                              I will try another, 3rd, SD card to triple check

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                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by Phaedrux

                                Just to clarify because I may have missed it in some edits, but were you able to get access point mode working? And were the drops still happening?

                                If that was the case, then yes, it's likely the module is failing given that your signal strength is good, no other devices in the area are having issues, and it happens even with the router removed from the equation. We've tried reflashing the wifi server and new SD card.

                                Replacing the wifi module isn't the most difficult process but it's not for beginners either.

                                Here's an example of it being done with an external antenna version, but it's basically the same.

                                https://forum.duet3d.com/topic/2825/converting-the-duet-wifi-to-use-an-external-antenna

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • Fodenundefined
                                  Foden @Foden
                                  last edited by

                                  @Foden Same issue with 3 different sd cards, all error checked and formatted FAT32

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                                  • Fodenundefined
                                    Foden @Phaedrux
                                    last edited by Foden

                                    @Phaedrux Yes, was able to get the AP mode working and connected to it, same network drop problem. Will take a look at the link - thanks again

                                    I think this is an indication of an issue "WiFi Vcc 3.45, reset reason Unknown" as it doesn't match the expected output

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                                    • Fodenundefined
                                      Foden
                                      last edited by

                                      I left the Wi-Fi extender, for now, blasting into the ear of the DuetWiFi, as I don't see it hurting anything - other than the folks across the street 😁
                                      In desperation, as I don't really want to have to replace the Wi-Fi module - but will if required, I spent the morning redoing everything from scratch, just in case - no change. UNTIL I changed the "Number of maximum AJAX retries" from 3 to 4. No drops in the last 4 hours, for the first 1 1/2hrs I was re-leveling the bed - I mean why not - to see if raising the MCU temp was an issue - seems it was not.

                                      Usual KOD statement, but looks like the issue, possibly symptom only, was AJAX retry # brought about with a recent upgrade to Duet Wi-Fi 3.1.1. Which I had completely overlooked as a possible culprit. I had upgraded it but then not used the HEVO for awhile as I was using my MakerSelect IIIP.

                                      Will see if I get any more connection drop outs now I have tempted fate again

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                                      • Fodenundefined
                                        Foden
                                        last edited by Foden

                                        Last post on this, I know everyone will be pleased

                                        So, indeed it was the KOD - 30 mins ago back to constant drops again. Best get out the hairdryer, solder and BBQ tongs then......

                                        Can you turn the DuetWifi into a DuetEthernet?

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                                        • Phaedruxundefined
                                          Phaedrux Moderator @Foden
                                          last edited by

                                          @Foden said in Constant 'connection interrupted':

                                          Can you turn the DuetWifi into a DuetEthernet?

                                          Yes I believe so. Instead of soldering on a replacement module you could install the socket for the ethernet module.

                                          https://www.duet3d.com/DuetAddons/DuetEthernet_Module

                                          Z-Bot CoreXY Build | Thingiverse Profile

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                                          • Fodenundefined
                                            Foden
                                            last edited by

                                            Hmm, OK that's an option then, except for the hole I'd have to put in my case 😞 Oh well

                                            Thanks again Phaedrux

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