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    CONSTANT AJAX disconnect errors

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    • stripsundefined
      strips
      last edited by

      Don't know if this will help you but whenever I can no longer access the web I can not ping the duet. I have been following this thread on and off and got the same (or very similar) issue. I have to verify what the router says.

      Ender 5 Plus, E3D Bigbox Dual

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      • dc42undefined
        dc42 administrators
        last edited by

        I have reviewed the wifi server project and found an issue which could explain some of the problems you are seeing. I hope to have an updated DuetWiFiServer by tomorrow. It will be compatible with DuetWiFiFirmware 1.20beta1, so I suggest you upgrade to that (along with DuetWiFiServer 1.20alpha1) to provide a baseline.

        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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        • KeeganBundefined
          KeeganB
          last edited by

          That is very exciting David! (the update)

          I just upgraded to a new router and I am still learning the GUI for it. The pings make me believe it was not connected to the router, but when going to the web GUI for the router it still showed the Duet on the connected clients list. I am inclined to not believe that though, and I may have been reading the page wrong. I will test that again next time I get a disconnect.

          EDIT: I will try to get updated the the respective 1.20 beta/alpha firmwares tonight.

          Artemis
          Rostock Max v2
          Orion

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          • Jareryundefined
            Jarery
            last edited by

            Loaded the new software
            Firmware Version: 1.20beta1 (2017-10-02)
            WiFi Server Version: 1.20alpha1
            Web Interface Version: 1.19.3 (this dint show at first even with reboot)

            Ran well for 2 hours then disconnect, bottom line with reason not on the popup. Just the same AJAX error.
            Unable to reconnect with connect button
            M522 shows still connected to access point
            Router shows disconnected
            Unable to ping

            Reset wifi with paneldue
            M522 S0, pause, M522 S1
            Connect button reconnects.

            M122 after reconnect then shows:
            === Move ===
            MaxReps: 12, StepErrors: 0, FreeDm: 120, MinFreeDm 120, MaxWait: 230003ms, Underruns: 0, 0
            Scheduled moves: 127412, completed moves: 127383

            http is idle in state(s) 0
            telnet is idle in state(s) 0
            file is doing "G1 X-67.592 Y56.469 E0.06335" 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
            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 38816
            WiFi IP address 192.168.2.32
            WiFi signal strength -46dBm
            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)

            Edit: second disconnection, same print, reconnected after 2nd press of connect without having to cycle wifi module. Router showed it as not connect prior to using connect button.
            After it reconnected, a M122 showed Reconnections 1 (first time I've ever seen reconnections not be 0)

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            • KeeganBundefined
              KeeganB
              last edited by

              @dc42:

              Thanks for that report. Net time it happens, please log on to your router and see whether it still shows the Duet as a connected client, and post the relevant bits of the M122 report again. The M122 says that the Duet is connected to the router, but I want to know whether the router agrees.

              Are you using a static IP address, or DHCP?

              This is a bit odd.

              Currently I can't load DWC.
              Pronterface shows connected to my network
              Router shows connected but access type is "wired"

              Edit:
              After running M552 S-1 and then M552 S1, the router now shows the Duet access type as "2.4G", as expected.

              I will keep an eye on this to see if it always changes to "wired" when the issues happen.

              Artemis
              Rostock Max v2
              Orion

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              • MiRundefined
                MiR
                last edited by

                I just upgraded to 1.19.2 and I see the same issues as described in callil's comment above.

                Does it help if I do Airtraces with my Mac? If yes, should I do this with 1.19.2 or should I upgrade to 1.20 beta?

                The interesting thing I am seeing is that the duett is still associated to the AP but it is not answering to pings.

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                • dc42undefined
                  dc42 administrators
                  last edited by

                  The next DuetWiFiServer release I do will be designed to work with 1.20beta1, or possibly a later 1.20 beta release.

                  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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                  • MiRundefined
                    MiR
                    last edited by

                    I upgraded anyway, it took a little longer until I was unable to use the connection.

                    Fun thing is that I still see packet exchange between AP and duet:

                    RSSI: -40 dBm
                    TXPacketCount
                    176423
                    RXPacketCount
                    20352

                    a little later:

                    TXPacketCount
                    176799
                    RXPacketCount
                    20744

                    I can also still access station stats of the duet:

                    /cfg/system/root # wlctl -i wl0 sta_info 5C:CF:7F:37:8A:E3
                    [VER 4] STA 5C:CF:7F:37:8A:E3:
                    aid:5
                    rateset [ 1 2 5.5 6 9 11 12 18 24 36 48 54 ]
                    idle 1 seconds
                    in network 1857 seconds
                    state: AUTHENTICATED ASSOCIATED AUTHORIZED
                    flags 0x1e13a: WME PS N_CAP AMPDU AMSDU
                    HT caps 0x112c: SGI20 STBC-Rx
                    tx total pkts: 177054
                    tx total bytes: 47635359
                    tx ucast pkts: 23995
                    tx ucast bytes: 3712620
                    tx mcast/bcast pkts: 153059
                    tx mcast/bcast bytes: 43922739
                    tx failures: 1
                    rx data pkts: 21124
                    rx data bytes: 6136443
                    rx ucast pkts: 21112
                    rx ucast bytes: 6134771
                    rx mcast/bcast pkts: 12
                    rx mcast/bcast bytes: 1672
                    rate of last tx pkt: 72222 kbps - 19500 kbps
                    rate of last rx pkt: 6000 kbps
                    rx decrypt succeeds: 17064
                    rx decrypt failures: 88
                    tx data pkts retried: 0
                    per antenna rssi of last rx data frame: -47 -40 -41 0
                    per antenna average rssi of rx data frames: -46 -40 -40 0
                    per antenna noise floor: -94 -97 -96 0
                    tx total pkts sent: 23994
                    tx pkts retries: 2400
                    tx pkts retry exhausted: 1
                    tx FW total pkts sent: 64
                    tx FW pkts retries: 0
                    tx FW pkts retry exhausted: 0
                    rx total pkts retried: 2116

                    Are you able to turn of Powersave on the esp? I see in the stats that PS flag is set, I have seen numerous errors with Powersave on WiFi

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                    • KeeganBundefined
                      KeeganB
                      last edited by

                      And this is tonight's error….

                      This was loading DWC about 1 min after a fresh power up of the printer:
                      Error reason: SyntaxError: JSON Parse error: Unterminated string

                      Then after hitting refresh for the web browser I got a different error that I wasn't able to copy before it disappeared, but I think it ended in "invalid digits."

                      after M552 S-1 and S1, this is the new error:
                      Error reason: SyntaxError: JSON Parse error: Expected '}'

                      EDIT:

                      updated to all the latest firmwares from the edge GitHub, disconnects continue. That was expected, but just as an FYI for those following along.

                      Artemis
                      Rostock Max v2
                      Orion

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                      • KeeganBundefined
                        KeeganB
                        last edited by

                        Hey David,

                        Just checking in on the new firmware. I continue to have disconnects, but haven't done much or posted any further on them in the past few days.

                        Artemis
                        Rostock Max v2
                        Orion

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                        • dc42undefined
                          dc42 administrators
                          last edited by

                          I recall that some of you report that the WiFi is reliable when the printer is idle, but it disconnects a little while after printing starts, even though you are not using high microstepping. It occurs to me that this could be temperature-related. The WiFi module gets warm in normal use, and when the stepper drivers are generating heat as well it could be getting too hot to function properly. So please try the following:

                          • Monitor the CPU temperature in DWC until the point at which it disconnects. Is there a significant rise in temperature?
                          • Try cooling the Duet with a fan, if you don't already.

                          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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                          • KeeganBundefined
                            KeeganB
                            last edited by

                            David,

                            Where in DWC can I see the board temp?

                            Thanks

                            Artemis
                            Rostock Max v2
                            Orion

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                            • Dougal1957undefined
                              Dougal1957
                              last edited by

                              on any page if you check the Temp area top left you will see an Extras label click it and the MCU temp will appears which you can add to the Line chart if you wish.

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                              • Jareryundefined
                                Jarery
                                last edited by

                                My Board is mounted above my delta, so bed heat has no effect. The board temp is low to mid 30's when no fan is used. (calibrated just yesterday its about 3 degrees below the PT100 temp)
                                Mine also disconnects while idle.

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                                • KeeganBundefined
                                  KeeganB
                                  last edited by

                                  @Dougal1957:

                                  on any page if you check the Temp area top left you will see an Extras label click it and the MCU temp will appears which you can add to the Line chart if you wish.

                                  perfect, thanks!

                                  32.8C at idle after being powered on for several hours.

                                  Artemis
                                  Rostock Max v2
                                  Orion

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                                  • KeeganBundefined
                                    KeeganB
                                    last edited by

                                    Over a couple different hour long prints the MCU temp stayed right around 34 C.

                                    Artemis
                                    Rostock Max v2
                                    Orion

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                                    • 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

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                                      • 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

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                                        • Jareryundefined
                                          Jarery
                                          last edited by

                                          First print, disconnected while printing the skirt

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                                          • 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

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