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    CONSTANT AJAX disconnect errors

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    • Dougal1957undefined
      Dougal1957
      last edited by

      David

      Just tried to install B7-nosleep and sorry to say it failed (FW Loads fine) when trying to diagnose this I sent the usual M552 S0 but got no response back send M552 S1 and get an error saying to stop the wifi before starting it and M552 reposrts WiFi starting (Reloaded the Server fw 3 times with the same results including copying direct to the SD Card and renaming etc).

      so decided to try B6 which worked and loaded the Wifi almost instantly.

      Hope this helps (Not that I was suffering the Disconnects anyway)

      Doug

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      • abeckerundefined
        abecker
        last edited by

        Any tips on what I should try. I have noticed I will get the Ajax Disconnect error at random times in a print. Sometimes it is when it is probing with the G32 command, and other times it can be actually printing. Mine will completely disconnect from the network and can't ping it or anything. I will have to wait for the print to finish and then turn it off and back on and it connects back immediately. The printer is in the same room as the router.

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        • Jareryundefined
          Jarery
          last edited by

          Loaded on my system. Got a message saying can't rename the file but then it went ahead and updated.
          Wont be able to print to later but I can make it run through some large simulation files remotely.

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          • Jareryundefined
            Jarery
            last edited by

            JavaScript Error

            A JavaScript error has occurred so the web interface has closed the connection to your board. It is recommended to reload the web interface now. If this happens again, please contact the author and share this error message:

            Script Error: See Browser Console for Detail

            –------------------------------------
            Received the above when i resized the browser window, reconnected when the "connect" button is pressed.
            Then when i ran M122 and tried to copy the wifi section it disconnected with same error

            M122:Network state is running
            WiFi module is connected to access point
            Failed messages: pending 0, notready 0, noresp 0
            WiFi firmware version 1.20beta7-nosle
            WiFi MAC address a0:20:a6:10:55:89
            WiFi Vcc 3.45, reset reason Turned on by main processor
            WiFi flash size 4194304, free heap 28552
            WiFi IP address 192.168.2.34
            WiFi signal strength -45dBm, reconnections 0, sleep mode none
            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)

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            • number40fanundefined
              number40fan
              last edited by

              @cbusillo:

              Oh you might want to put a warning out that Chinese Duets are out.

              Where?

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              • T3P3Tonyundefined
                T3P3Tony administrators
                last edited by

                No. One. Mention. The. Clones.

                J/k pm where you have seen them 🙂

                www.duet3d.com

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                • number40fanundefined
                  number40fan
                  last edited by

                  I thought I had some good google fu, but I can't find anything. Mythological creature, maybe?

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                  • elmoretundefined
                    elmoret
                    last edited by

                    I've seen 0.8.5 clones, but nothing for Duet Wifi/Ethernet yet.

                    1 Reply Last reply Reply Quote 0
                    • patelundefined
                      patel
                      last edited by

                      @dc42:

                      1. I have put a build of DuetWiFiServer with sleep disabled (version 1.20beta7-nosleep) at https://www.dropbox.com/s/59s7vfkrf50fe0v/DuetWiFiServer-1.20beta7-nosleep.bin?dl=0. Please try it. The previous build (1.20beta6) is at https://www.dropbox.com/s/djs0p4beitjs60t/DuetWiFiServer-1.20beta6.bin?dl=0.

                      2. Patel, what make and model of wifi router are you connecting the Duet to?

                      Devid I try my iPhone it same
                      An AJAX error has been reported, So the current session has been terminated.
                      HTTP sessions : 1 of 8
                      Socket states:- 2 0 0 0 0 0 0 0
                      Responder states:HTTP(1) HTTP(0)…......

                      I connect to the duet to USB ( My desktop )
                      this is the summery .
                      USB CONNECT TO DUET

                      m122
                      SENDING:M122
                      === Diagnostics ===
                      Used output buffers: 1 of 32 (15 max)
                      === Platform ===
                      RepRapFirmware for Duet WiFi version 1.19.2 running on Duet WiFi 1.0
                      Board ID: 08DDM-9FAM2-LW4SD-6J9D6-3SN6L-12ZHY
                      Static ram used: 21176
                      Dynamic ram used: 96040
                      Recycled dynamic ram: 1568
                      Stack ram used: 4048 current, 5920 maximum
                      Never used ram: 6368
                      Last reset 02:34:02 ago, cause: power up
                      Last software reset reason: User, spinning module GCodes, available RAM 7408 bytes (slot 4)
                      Software reset code 0x0003, HFSR 0x00000000, CFSR 0x00000000, ICSR 0x00400000, BFAR 0xe000ed38, SP 0xffffffff
                      Error status: 0
                      [ERROR] 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 34.6, current 35.4, max 36.4
                      Supply voltage: min 12.0, current 12.0, max 12.2, under voltage events: 0, over voltage events: 0
                      Driver 0: standstill
                      Driver 1: stalled standstill
                      Driver 2: stalled standstill
                      Driver 3: standstill
                      Driver 4: standstill
                      Date/time: 2017-11-09 13:48:43
                      Slowest main loop (seconds): 0.224121; fastest: 0.000000
                      === Move ===
                      MaxReps: 8, StepErrors: 0, FreeDm: 240, MinFreeDm 239, MaxWait: 5259148ms, Underruns: 0, 0
                      Scheduled moves: 9, completed moves: 9
                      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 = 0.0
                      === 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 ready with "M122" 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 1.20beta6
                      WiFi MAC address 2c:3a:e8:0a:f1:18
                      WiFi Vcc 3.36, reset reason Turned on by main processor
                      WiFi flash size 4194304, free heap 33592
                      WiFi IP address 192.168.0.144
                      WiFi signal strength -42dBm
                      Reconnections 0
                      HTTP sessions: 2 of 8
                      Socket states: 0 0 0 0 0 0 0 0
                      Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)

                      Communication Error

                      An AJAX error has been reported, so the current session has been terminated.

                      Please check if your printer is still on and try to connect again

                      m122
                      SENDING:M122
                      === Diagnostics ===
                      Used output buffers: 10 of 32 (15 max)
                      === Platform ===
                      RepRapFirmware for Duet WiFi version 1.19.2 running on Duet WiFi 1.0
                      Board ID: 08DDM-9FAM2-LW4SD-6J9D6-3SN6L-12ZHY
                      Static ram used: 21176
                      Dynamic ram used: 96040
                      Recycled dynamic ram: 1568
                      Stack ram used: 4048 current, 5920 maximum
                      Never used ram: 6368
                      Last reset 02:36:37 ago, cause: power up
                      Last software reset reason: User, spinning module GCodes, available RAM 7408 bytes (slot 4)
                      Software reset code 0x0003, HFSR 0x00000000, CFSR 0x00000000, ICSR 0x00400000, BFAR 0xe000ed38, SP 0xffffffff
                      Error status: 0
                      [ERROR] 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 35.3, current 35.5, max 35.9
                      Supply voltage: min 12.0, current 12.1, max 12.2, 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: 2017-11-09 13:51:18
                      Slowest main loop (seconds): 0.079102; fastest: 0.000000
                      === Move ===
                      MaxReps: 0, StepErrors: 0, FreeDm: 240, MinFreeDm 240, MaxWait: 0ms, Underruns: 0, 0
                      Scheduled moves: 10, completed moves: 10
                      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 = 0.0
                      === 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 ready with "M122" 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 1.20beta6
                      WiFi MAC address 2c:3a:e8:0a:f1:18
                      WiFi Vcc 3.36, reset reason Turned on by main processor
                      WiFi flash size 4194304, free heap 33592
                      WiFi IP address 192.168.0.144
                      WiFi signal strength -43dBm
                      Reconnections 0
                      HTTP sessions: 2 of 8
                      Socket states: 0 0 0 0 0 0 0 0
                      Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)

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                      • Jareryundefined
                        Jarery
                        last edited by

                        12:35:24 PMConnection established!
                        10:51:05 AMDisconnected.
                        9:46:14 AMConnection established!
                        9:46:14 AMPage Load complete!

                        Went for lunch, came back, and disconnected….it did reconnect with connect button but it had bene disco'd for over 90 min which usually is long enough for it to reconnect

                        Firmware Name: RepRapFirmware for Duet WiFi
                        Firmware Electronics: Duet WiFi 1.0
                        Firmware Version: 1.20beta6 (2017-11-03)
                        WiFi Server Version: 1.20beta7-nosle
                        Web Interface Version: 1.19.3

                        edit: Made a change to config, rebooted printer....and the below is the printer sitting idle

                        1:14:26 PMDisconnected.
                        12:54:22 PMConnection established!
                        12:54:17 PMDisconnected.
                        12:38:44 PMConnection established!
                        12:38:44 PMPage Load complete!

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                        • Jareryundefined
                          Jarery
                          last edited by

                          My system has disconnected again, 8 min after disconnect I can ping it via terminal fine and it still shows as connected in my router page. Connected via connect button.

                          Will test again when i get one of the locked out disconnects.

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                          • dc42undefined
                            dc42 administrators
                            last edited by

                            Jarery, thanks for your report. What make and model of router are you using?

                            Patel, thanks for your reports too. have you tried with DuetWiFiServer 1.20beta7-nosleep yet? Also, what make and model of router are you using?

                            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

                              I have 2, an Asus RT-AC3100 as my main and located 3m away, and an Asus RT-AC66U used as a access point located about 12m away. I get similar results with and without the AP router turned on.

                              Running latest Merlin Firmware, 380.68_4

                              Edit:
                              last disconnect at 2:56, its now 4:03 and connect button will not reconnect. Will take a reboot or reset of wifi module. Cannot ping via terminal

                              edit 2: wifi reset (M552 S-1, G4 S1, M552 S1) showed a reconnect on the paneldue screen but could not connect web browser, a power cycle to the printer did work.

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                              • KeeganBundefined
                                KeeganB
                                last edited by

                                I have updated to DuetWiFiServer 1.20beta7-nosleep and am testing it now.

                                Curiously, I am not sure that they "print simulation" is working. Its been going for 33mins on a print file that should have taken less than 10mins.

                                I gave up on the print simulation issue. I guess Ill sort that later.

                                I have been connected since 8:42pm.
                                I printed a 14 min calibration cube. Success.
                                Started a 6.5 hour print at 10:45pm

                                Fingers crossed for the morning.

                                Artemis
                                Rostock Max v2
                                Orion

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                                • dc42undefined
                                  dc42 administrators
                                  last edited by

                                  Keegan, which main firmware version are you running? Simulation mode was broken in 1.20b2 and b3 but fixed in b4.

                                  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
                                  • KeeganBundefined
                                    KeeganB
                                    last edited by

                                    @dc42:

                                    Keegan, which main firmware version are you running? Simulation mode was broken in 1.20b2 and b3 but fixed in b4.

                                    You know what? That is it! I am running 1.20beta2.

                                    I am still connected this morning. It has been over 10hrs now. I am starting the third print now.

                                    Artemis
                                    Rostock Max v2
                                    Orion

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                                    • JohnOCFIIundefined
                                      JohnOCFII
                                      last edited by

                                      @Jarery:

                                      I have 2, an Asus RT-AC3100 as my main and located 3m away, and an Asus RT-AC66U used as a access point located about 12m away. I get similar results with and without the AP router turned on.

                                      Running latest Merlin Firmware, 380.68_4.

                                      Just as a related data point – I have two routers also running Asus Merlin 380.68_4. Once is an RT-N66R (https://www.asus.com/us/Networking/RTN66R/) running just as an AP, and the main router/AP is an RT-AC68P (https://www.asus.com/us/Networking/RTAC68P/).

                                      The DuetWiFi usually connects to the RT-N66R.

                                      I've stayed connected for up to 4 hours. I've not left the printer on longer than that yet. 🙂

                                      I've had occasional disconnects, but not enough to bother me yet. If I did longer prints on this printer, it might crop up as an issue more often. If my printer is typically on for 3 hours, I might have one disconnect every third session.

                                      I'm running 1.19.2.

                                      John

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                                      • KeeganBundefined
                                        KeeganB
                                        last edited by

                                        John, when you get the disconnect, are you locked out or can you just click connect to get back?

                                        Artemis
                                        Rostock Max v2
                                        Orion

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                                        • dc42undefined
                                          dc42 administrators
                                          last edited by

                                          Hi all,

                                          Here are two new builds of DuetWiFiServer:

                                          https://www.dropbox.com/s/5cp3w947vonp36s/DuetWiFiServer-1.20b8.bin?dl=0

                                          https://www.dropbox.com/s/8k83pw56gefezqm/DuetWiFiServer-1.20b8-nosleep.bin?dl=0

                                          Those of you having issues maintaining a wifi connection, please try the first one (needs DuetWiFiFirmware 1.20b4 or 1.20b6). If that doesn't improve things, try the second one. The recommended way to install these is to download the one you want, rename it to DuetWiFiServer.bin, then upload it through the Settings->General page of DWC.

                                          If for any reason you can't reconnect after installing it, please try re-installing it by sending M997 S2 via USB or PanelDue. I had to do this once on one of my test systems.

                                          Please report your findings here. As a bonus, access point mode is working in this build.

                                          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

                                            M997 S0
                                            Error: M997: Firmware binary "DuetWiFiFirmware.bin" is not valid for this electronics

                                            Firmware Name: RepRapFirmware for Duet WiFi
                                            Firmware Electronics: Duet WiFi 1.0
                                            Firmware Version: 1.20beta6 (2017-11-03)
                                            WiFi Server Version: 1.20beta7-nosle
                                            Web Interface Version: 1.19.3

                                            • Install worked via panel due.
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