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    Web interface AJAX timeouts

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    • dc42undefined
      dc42 administrators
      last edited by

      As these disconnects are so sporadic, my guess is that they may be caused by temporary loss of the wireless connection. DWC doesn't allow for that, so it's on my list to allow at least one retry after a timeout.

      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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      • elmoretundefined
        elmoret
        last edited by

        Same here, about one timeout related disconnect every 15 minutes. AJAX timeout set to 20s.

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        • RCarlyleundefined
          RCarlyle
          last edited by

          Haven't had any timeouts yet tonight. Currently 36 minutes into a print.

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          • RCarlyleundefined
            RCarlyle
            last edited by

            It's really weird that some nights I get the timeouts constantly, and some nights I make it 4+ hours without one.

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            • elmoretundefined
              elmoret
              last edited by

              I'm seeing the same behavior here.

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              • RCarlyleundefined
                RCarlyle
                last edited by

                Not sure what just happened, but I had an AJAX timeout in the middle of uploading a file, and the web interface lost the ability to upload files until I reloaded the interface page (in Chrome). When I clicked Upload & Print, it would open the file selection dialog, and then upon selecting the file nothing would happen. Persisted through power cycling the printer. Reloading the web page (which took ~20+ seconds) fixed it.

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                • briangilbertundefined
                  briangilbert
                  last edited by

                  This has just happened to me as well, except I was unable to reload the web interface without power cycling the duet

                  Co-creator of the Zesty Nimble direct drive extruder

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                  • elmoretundefined
                    elmoret
                    last edited by

                    The AJAX errors are really my only complaint at this point, everything else has been smooth sailing.

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                    • roboduetundefined
                      roboduet
                      last edited by

                      @RCarlyle:

                      Reloading the web page (which took ~20+ seconds) fixed it.

                      Not sure that I'm right, but it seems like such long times with page reload caused by this: https://www.duet3d.com/forum/thread.php?pid=402#p402

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                      • curieosundefined
                        curieos
                        last edited by

                        I'm printing now but I keep getting timeouts. I got two in a row after restarting the same print (had to power cycle the printer both times) and then this one got a ways in before it timed out. The print is still going, but I need to reconnect to increase the temp by 5 degrees. Its been 25 minutes since the DC and I still can't connect.

                        She/Her
                        I work at a local 3D printing shop.
                        Printers: Micron+ w/Duet 3 Mini, in-progress adaptation of the Jubilee REL onto an E3D MS, Prusa i3 MK3S.

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                        • T3P3Tonyundefined
                          T3P3Tony administrators
                          last edited by

                          Nyl0cke, check out the resolution on this thread:
                          https://www.duet3d.com/forum/thread.php?id=38&p=2

                          It will be interesting to see what effect this has

                          www.duet3d.com

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                          • roboduetundefined
                            roboduet
                            last edited by

                            Seems like this fix is only for static files (css/html/js) coming from Duet to browser. But not for dynamic ajax responses.

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                            • curieosundefined
                              curieos
                              last edited by

                              Yeah I'm also still getting a lot of errors. About the same amount, maybe more but its a small sample size so it might be coincidence.

                              She/Her
                              I work at a local 3D printing shop.
                              Printers: Micron+ w/Duet 3 Mini, in-progress adaptation of the Jubilee REL onto an E3D MS, Prusa i3 MK3S.

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                              • dc42undefined
                                dc42 administrators
                                last edited by

                                1. Those of you who are getting Ajax disconnects: is the Error Reason at the bottom of the box always given as timeout?

                                2. If you ever find that you can't reconnect after a disconnect, please try the following if possible:

                                A. Close the browser tab, open a new one and try to connect in that.

                                B. If that doesn't work, use Pronterface or PanelDue to send M552 S0 followed by M552 S1 to restart the wifi module. Then try to connect.

                                C. If that doesn't work, run M122 from Pronterface and see what the number of free buffers is.

                                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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                                • curieosundefined
                                  curieos
                                  last edited by

                                  Yes for me. I canceled the print I had going (had a mechanical problem I had to fix) and I updated the web server and now I can't keep connected for more than a couple minutes it seems. its been anywhere between 30 seconds to 8 minutes right now.

                                  I'll try what you said when it happens again

                                  She/Her
                                  I work at a local 3D printing shop.
                                  Printers: Micron+ w/Duet 3 Mini, in-progress adaptation of the Jubilee REL onto an E3D MS, Prusa i3 MK3S.

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                                  • pjr3Dundefined
                                    pjr3D
                                    last edited by

                                    1. It certainly is for me.

                                      • A. Connect from another browser instance (machine) works but is slow

                                    B. Hasn't been necessary yet and I have no paneldue on this machine

                                    C. Will try next time if I can't reconnect

                                    Seems to be worse after I went from wired-wifi connection to wifi-wifi after I moved my laptop. Upload speeds dropped to ~250k (even seen 30-40k on smallish files!).

                                    Hope you can find a fix for timeouts as well as speed.

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                                    • curieosundefined
                                      curieos
                                      last edited by

                                      Okay, If it disconnects I can not reconnect by opening a new tab and trying to connect. If I connect to the board via serial I can turn off the server and turn it back on and I can connect.

                                      I can leave it connected but I can't test while printing for a while, the mount I used for my hotend isn't working very well, the hotend is moving around in its mount (flying extruder) a good 3mm or so.

                                      I also tried reconnecting on a different computer to no avail.

                                      She/Her
                                      I work at a local 3D printing shop.
                                      Printers: Micron+ w/Duet 3 Mini, in-progress adaptation of the Jubilee REL onto an E3D MS, Prusa i3 MK3S.

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                                      • mhackneyundefined
                                        mhackney
                                        last edited by

                                        I've been chasing timeout problems on my thread here too. I also can not reconnect after a timeout but can do things from PanelDue. When I first commissioned Duet WiFi using the installed firmware, it was up and running for well over 48 hrs with no time outs. I then attempted to install a custom DWC.bin (simple hack) and it has been disconnecting within 1 minute since and once disconnected, I can't stay connected. I copied and pasted all of the error dialogs and exactly what I did on my thread. I'm now going to go back and reinstall all of the original binaries and see what happens and do some network captures in wireshark.

                                        My 3D Printing blog: http://www.sublimelayers.com
                                        Coming this summer: "3D Printing Strategies - the art of perfecting your designs and prints"

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                                        • elmoretundefined
                                          elmoret
                                          last edited by

                                          I think I've always been able to reconnect without power cycling. Maybe once did I have to, otherwise a reload of the page or clicking the connect button worked.

                                          Have not upgraded to the recently released firmware though.

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                                          • mhackneyundefined
                                            mhackney
                                            last edited by

                                            I've reverted back to the pre-production firmware that shipped with the board and when I disconnect now, I have to reset or turn off/on wifi in order to reconnect. But, once connected it always disconnects quickly afterwards (1-60 seconds or so).

                                            My 3D Printing blog: http://www.sublimelayers.com
                                            Coming this summer: "3D Printing Strategies - the art of perfecting your designs and prints"

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