Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    CONSTANT AJAX disconnect errors

    Scheduled Pinned Locked Moved
    General Discussion
    28
    307
    55.1k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • dc42undefined
      dc42 administrators
      last edited by

      Please can those of you who are experiencing disconnect errors and are running DuetWiFiFirmware 1.20beta1 try changing the wifi firmware to version 1.20alpha1+1, which is available here: https://www.dropbox.com/s/u7vpp2wg4rlqs8l/DuetWiFiServer.bin?dl=1. Then let me know if you think it is better or worse.

      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

      1 Reply Last reply Reply Quote 0
      • Jareryundefined
        Jarery
        last edited by

        DuetWiFiFirmware1.20alpha1+1

        • Install 6:55
        • idle
        • Disconnect 7:55

        The log showed slightly different times. The disconnect happened at 7:55 but doesn't show on the log till 8:05. It would not connect via connect button during that time.
        2017-10-12 06:56:11 Event logging started
        2017-10-12 08:05:21 WiFi reported error: Lost connection, auto reconnecting
        2017-10-12 08:05:22 WiFi reported error: Auto reconnect succeeded

        after reconnect M122:
        Network state is running
        WiFi module is connected to access point
        WiFi firmware version 1.20alpha1+1
        WiFi MAC address a0:20:a6:10:55:89
        WiFi Vcc 3.16, reset reason Turned on by main processor
        WiFi flash size 4194304, free heap 38352
        WiFi IP address 192.168.2.32
        WiFi signal strength -45dBm
        Reconnections 1
        HTTP sessions: 1 of 8
        Socket states: 2 0 0 0 0 0 0 0
        Responder states: HTTP(1) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)

        Edit 2:
        Left idle it disconnected again, after waiting 30 min Im able to reconnect. Log doesn't show that it ever knew it was disconnected: The 10:10 log is me reconnecting after disconnecting 30 min or so previous
        2017-10-12 06:56:11 Event logging started
        2017-10-12 08:05:21 WiFi reported error: Lost connection, auto reconnecting
        2017-10-12 08:05:22 WiFi reported error: Auto reconnect succeeded
        2017-10-12 08:58:13 HTTP client 192.168.2.49 login succeeded
        2017-10-12 10:10:20 HTTP client 192.168.2.49 login succeeded

        1 Reply Last reply Reply Quote 0
        • Jareryundefined
          Jarery
          last edited by

          First print, disconnected while printing the skirt

          1 Reply Last reply Reply Quote 0
          • dc42undefined
            dc42 administrators
            last edited by

            Thanks for your feedback. Which country are you in?

            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

            1 Reply Last reply Reply Quote 0
            • Jareryundefined
              Jarery
              last edited by

              Canada, Vancouver BC specificaly,

              1 Reply Last reply Reply Quote 0
              • KeeganBundefined
                KeeganB
                last edited by

                Ill be away from the printer for about a week, but will updated to that new version you shared David as soon as I return.

                Artemis
                Rostock Max v2
                Orion

                1 Reply Last reply Reply Quote 0
                • fmaundefined
                  fma
                  last edited by

                  David, I juste realized that my WiFi signal strength is really low: -68dBm! I think I'm lucky it's working so well, despite such poor signal!

                  I think I will order the new ESP module, with antenna.

                  Frédéric

                  1 Reply Last reply Reply Quote 0
                  • callilundefined
                    callil
                    last edited by

                    Updated to alpha1+1 - pretty much the same story for me unfortunately.
                    The following log is right after a disconnect when idle. I restarted the wifi module with M552 on device.

                    [[language]]
                    === Diagnostics ===
                    Used output buffers: 3 of 32 (17 max)
                    === Platform ===
                    RepRapFirmware for Duet WiFi version 1.20beta1 running on Duet WiFi 1.0
                    Board ID: 08DAM-9K9K2-NGNSN-6JKD0-3SJ6T-15UBM
                    Static ram used: 15128
                    Dynamic ram used: 96048
                    Recycled dynamic ram: 3512
                    Stack ram used: 1352 current, 4880 maximum
                    Never used ram: 11504
                    Last reset 00:06:35 ago, cause: reset button or watchdog
                    Last software reset reason: User, spinning module GCodes, available RAM 11504 bytes (slot 3)
                    Software reset code 0x0003, HFSR 0x00000000, CFSR 0x00000000, ICSR 0x00400000, BFAR 0xe000ed38, SP 0xffffffff
                    Error status: 0
                    Free file entries: 10
                    SD card 0 detected, interface speed: 20.0MBytes/sec
                    SD card longest block write time: 0.0ms
                    MCU temperature: min 41.1, current 41.6, max 42.8
                    Supply voltage: min 24.1, current 24.2, max 24.6, under voltage events: 0, over voltage events: 0
                    Driver 0: stalled standstill
                    Driver 1: stalled standstill
                    Driver 2: stalled standstill
                    Driver 3: standstill
                    Driver 4: standstill
                    Date/time: 2017-10-15 15:01:57
                    Slowest main loop (seconds): 0.008844; fastest: 0.000033
                    === Move ===
                    MaxReps: 0, StepErrors: 0, FreeDm: 240, MinFreeDm 240, MaxWait: 0ms, Underruns: 0, 0
                    Scheduled moves: 0, completed moves: 0
                    Bed compensation in use: none
                    Bed probe heights: 0.000 0.000 0.000 0.000 0.000
                    === Heat ===
                    Bed heater = 0, chamber heater = -1
                    Heater 0 is on, I-accum = 0.0
                    Heater 1 is on, I-accum = 0.3
                    === GCodes ===
                    Segments left: 0
                    Stack records: 1 allocated, 0 in use
                    Movement lock held by null
                    http is idle in state(s) 0
                    telnet is idle in state(s) 0
                    file is idle in state(s) 0
                    serial is idle in state(s) 0
                    aux is idle in state(s) 0
                    daemon is idle in state(s) 0
                    queue is idle in state(s) 0
                    autopause is idle in state(s) 0
                    Code queue is empty.
                    Network state is running
                    WiFi module is connected to access point 
                    WiFi firmware version 1.20alpha1+1
                    WiFi MAC address 5c:cf:7f:ef:4c:24
                    WiFi Vcc 3.11, reset reason Turned on by main processor
                    WiFi flash size 4194304, free heap 35064
                    WiFi IP address 192.168.1.107
                    WiFi signal strength -58dBm
                    Reconnections 0
                    HTTP sessions: 1 of 8
                    Socket states: 2 0 0 0 0 0 0 0
                    Responder states: HTTP(1) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
                    
                    
                    1 Reply Last reply Reply Quote 0
                    • JohnOCFIIundefined
                      JohnOCFII
                      last edited by

                      I've been leery of updating beyond 1.18.2 due to the frequent reports of WiFi issues. Today I decided to take the leap. The upgrade to 1.19.2 went well. Checking M122 my RSSI varied between -53 and -58 (the access point is one floor away in a wood framed house). I stayed connected from a web browser (Google Chrome from a Mac) for approximately 4 hours. During the middle of that 4 hour window was a single 90 minute print.

                      All seemed good. Not posting to gloat - but just wanted to add some data points. My access point is an Asus router running the third party Asus-Merlin firmware.

                      John

                      1 Reply Last reply Reply Quote 0
                      • Jareryundefined
                        Jarery
                        last edited by

                        @JohnOCFII:

                        My access point is an Asus router running the third party Asus-Merlin firmware.

                        My setup is similar, albeit with the issues.
                        I have an Asus AC3100 as my main router about 3m away, and an AC66U about 12m away as an access point both with same firmware version, both Merlins.

                        1 Reply Last reply Reply Quote 0
                        • saironundefined
                          sairon
                          last edited by

                          I experienced the same issue on a new Duet Wifi I received this week. I recalled that I had similar problems with some devices in the past with WMM mode enabled on the router. And indeed, disabling it fixed the issue. I have a router running OpenWrt based distribution, which allows to enable/disable WMM on per-SSID basis. I'm not sure about other routers, such as those ASUS devices mentioned here, but I think it should be at least possible to toggle WMM globally to try if it solves the problem.

                          1 Reply Last reply Reply Quote 0
                          • fmaundefined
                            fma
                            last edited by

                            As I use an OpenWRT-based router, I'll give this a try! Thanks.

                            Frédéric

                            1 Reply Last reply Reply Quote 0
                            • JohnOCFIIundefined
                              JohnOCFII
                              last edited by

                              @sairon:

                              I'm not sure about other routers, such as those ASUS devices mentioned here, but I think it should be at least possible to toggle WMM globally to try if it solves the problem.

                              Interesting.

                              One of my routers is an Asus RT-AC68P. The other is an older RT-N66R. The DuetWifi was attached to the RT-N66R. Both are running Asuswrt-Merlin 380.68_4

                              I notice on the Wireless section - Professional tab there is an item labeled: "Enable WMM APSD" The choices are "Enable" and "Disable" I'm not sure if they mean enabled and disabled but both routers are in the default setting, which shows "Enable."

                              Seeing that this setting has something to do with power saving mode and QoS, who knows - this could be related. I do not see a setting specific to just WMM.

                              https://routerguide.net/wmm-apsd-on-or-off/

                              John

                              1 Reply Last reply Reply Quote 0
                              • saironundefined
                                sairon
                                last edited by

                                @JohnOCFII:

                                Seeing that this setting has something to do with power saving mode and QoS, who knows - this could be related. I do not see a setting specific to just WMM.

                                Yep, "disabling WMM" practically means "disabling WMM APSD". Even the page you've linked mentions that it can be linked to connection dropouts: "There are reported cases of mobile devices dropping connections when the WMM APSD options are turned on."

                                As I said, it seems that disabling it resolved the issue for me, so it's worth a try if anyone faces the problem. Probably the worst thing that can happen is that they'll have worse battery performance on their mobile devices for the time of the test.

                                1 Reply Last reply Reply Quote 0
                                • MiRundefined
                                  MiR
                                  last edited by

                                  This article:

                                  http://bbs.espressif.com/viewtopic.php?t=133

                                  mentions a parameter for esp8266 to disable powersave on the chip itself, at least when in client-mode.

                                  „You can use wifi_set_sleep_type to set sleep type for power saving and set NONE_SLEEP_T to disable power saving.“

                                  @David: Could this be worth a try?

                                  1 Reply Last reply Reply Quote 0
                                  • dc42undefined
                                    dc42 administrators
                                    last edited by

                                    I looked at this before and I think it defaults to no power saving, but I'll check.

                                    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

                                    1 Reply Last reply Reply Quote 0
                                    • MiRundefined
                                      MiR
                                      last edited by

                                      At least when I checked with sta_info about a week ago the module was reporting powersave capability to the AP

                                      1 Reply Last reply Reply Quote 0
                                      • Jareryundefined
                                        Jarery
                                        last edited by

                                        turned off WMM APSD
                                        So far 2 hours into a print. Not a definitive answer yet, but so far id say looks promising…
                                        As I wrote this I went back and saw pink screen "ajax error" timeout, but was able to immediately reconnect with connect button.

                                        Will continue testing

                                        Edit: disconnected 5 min later, now can't reconnect....back to square one..

                                        1 Reply Last reply Reply Quote 0
                                        • fmaundefined
                                          fma
                                          last edited by

                                          I also turned off WMM. So far, no disconnect…

                                          Frédéric

                                          1 Reply Last reply Reply Quote 0
                                          • KeeganBundefined
                                            KeeganB
                                            last edited by

                                            Im running a Tenda AC18 and it doesn't look like I have any WMM options, that I can find.

                                            Artemis
                                            Rostock Max v2
                                            Orion

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Unless otherwise noted, all forum content is licensed under CC-BY-SA