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    Duet disconnects

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
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    • GPetropoulosundefined
      GPetropoulos
      last edited by

      Hello,

      I have been getting many disconnects the last days.
      0_1546720265441_Screenshot_2019-01-05 GP CR20.png

      How can i check what the reason is? Is there a way to see if it is my internet connection's problem? The router does not seem to disconnect nor my computer. What may be the reason for this?

      Thank you in advance

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by Phaedrux

        See here for some troubleshooting on wifi issues.
        https://duet3d.dozuki.com/Wiki/WiFi_disconnections_and_AJAX_timeout_errors

        If you do M122 to get a diagnostic readout, what does the wifi section at the end say?

        Z-Bot CoreXY Build | Thingiverse Profile

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        • GPetropoulosundefined
          GPetropoulos
          last edited by

          @phaedrux said in Duet disconnects:

          M122

          0_1546723645148_Screenshot_2019-01-05 (27 8%) GP CR20.png

          I did a reset some mins ago. To see if that fixes anything. It disconnected again. This is what M122 gives.

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          • GPetropoulosundefined
            GPetropoulos
            last edited by

            Here is my firmware version as well.

            0_1546723732644_Screenshot_2019-01-05 (36 4%) GP CR20.png

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              First, try updating your firmware to the full release of 2.02.

              Simply upload this zip file to the settings>general page of the DWC.
              https://github.com/dc42/RepRapFirmware/releases/download/2.02/Duet2Firmware-2.02.zip
              Don't unzip it first. The DWC should take care of the whole update.

              Then, you can try updating the wifi server firmware to a recent beta release that may help with disconnects. https://forum.duet3d.com/topic/8355/duetwifiserver-1-22beta1-available

              Z-Bot CoreXY Build | Thingiverse Profile

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              • GPetropoulosundefined
                GPetropoulos
                last edited by

                Updated both.
                Disconnects continue.
                0_1546726438269_Screenshot_2019-01-06 (8 0%) GP CR20.png

                0_1546726446796_Screenshot_2019-01-06 (5 7%) GP CR20.png

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                • GPetropoulosundefined
                  GPetropoulos
                  last edited by

                  How can i validate if this is an internet connection problem or a duet problem?

                  Phaedruxundefined 1 Reply Last reply Reply Quote 0
                  • Phaedruxundefined
                    Phaedrux Moderator @GPetropoulos
                    last edited by

                    Well the disconnects would be from your local router. The internet wouldn't come into play at all, even if you were connecting to the Duet over the internet.

                    Z-Bot CoreXY Build | Thingiverse Profile

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                    • GPetropoulosundefined
                      GPetropoulos @Phaedrux
                      last edited by

                      @phaedrux So duet is connected to the local network and should not be affected by the internet connection or speed?

                      0_1546727281977_Screenshot_2019-01-06 GP CR20.png

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                      • Phaedruxundefined
                        Phaedrux Moderator
                        last edited by Phaedrux

                        That's right, the Duet won't be affected by the internet portion of the router at all.

                        Your signal strength is good, so that's not an issue.

                        Are there other devices that could be causing interference?

                        Are you in an apartment with congested wireless spectrum?

                        Have you rebooted the router?

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • GPetropoulosundefined
                          GPetropoulos @Phaedrux
                          last edited by

                          @phaedrux said in Duet disconnects:

                          congested wireless spectrum

                          Not sure what congested wireless spectrum is.
                          My internet provider is a wireless internet service that transfers the internet signal via antennas through the air if that matters.

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                          • GPetropoulosundefined
                            GPetropoulos @Phaedrux
                            last edited by

                            @phaedrux Also my router is next to my computer and that is 1.5meters away from the printer.

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                            • Phaedruxundefined
                              Phaedrux Moderator
                              last edited by

                              Without knowing the exact details of your whole network I'm not sure what else to recommend at the moment. But you can try to identify a source of interference.

                              https://en.wikipedia.org/wiki/List_of_2.4_GHz_radio_use#Resolving_interference

                              In your case, with your internet provider being wireless itself, it's actually possible that it could be the source of interference. It might actually help to move your router out into a different room.

                              Z-Bot CoreXY Build | Thingiverse Profile

                              GPetropoulosundefined 1 Reply Last reply Reply Quote 0
                              • GPetropoulosundefined
                                GPetropoulos @Phaedrux
                                last edited by

                                @phaedrux The provider signal hits an antenna on the roof of the building, 4floors higher, and then an ethernet cat6 cable brings it to the router. It is not wireless till the router.

                                Phaedruxundefined dc42undefined 2 Replies Last reply Reply Quote 0
                                • Phaedruxundefined
                                  Phaedrux Moderator @GPetropoulos
                                  last edited by

                                  Ah I see. I thought it might be like one of those portable cellular wifi hotspots.

                                  Z-Bot CoreXY Build | Thingiverse Profile

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                                  • dc42undefined
                                    dc42 administrators @GPetropoulos
                                    last edited by

                                    @gpetropoulos, what does the blue LED on the WiFi module do? After it connects the first time, does it remain solid blue, or does it flash?

                                    If the problem is due to 2.4GHz interference from another device (e.g. cordless phone, baby monitor, microwave oven) then changing the router WiFi channel may help.

                                    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

                                    GPetropoulosundefined 1 Reply Last reply Reply Quote 0
                                    • GPetropoulosundefined
                                      GPetropoulos @dc42
                                      last edited by

                                      @dc42 I see the led of the wifi module staying stable blue even after disconnects.

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                                      • dc42undefined
                                        dc42 administrators @GPetropoulos
                                        last edited by

                                        @gpetropoulos said in Duet disconnects:

                                        @dc42 I see the led of the wifi module staying stable blue even after disconnects.

                                        That means the WiFi module thinks it is still connected to your router. So I suspect the problem is not with the Duet WiFi.

                                        When the problem occurs, are you still able to ping the Duet from a PC? If so, does the ping fail after you turn the Duet off?

                                        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

                                        GPetropoulosundefined 2 Replies Last reply Reply Quote 0
                                        • GPetropoulosundefined
                                          GPetropoulos @dc42
                                          last edited by GPetropoulos

                                          @dc42 I cannot manage to ping it as it reconnects immediately after it disconnects.

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                                          • GPetropoulosundefined
                                            GPetropoulos @dc42
                                            last edited by

                                            @dc42 This is what M122 gives after the last event.
                                            M122
                                            === Diagnostics ===
                                            RepRapFirmware for Duet 2 WiFi/Ethernet version 2.02(RTOS) running on Duet WiFi 1.02 or later
                                            Board ID: 08DGM-917NK-F23T0-6JKD4-3S06T-9YANF
                                            Used output buffers: 3 of 20 (20 max)
                                            === RTOS ===
                                            Static ram: 25524
                                            Dynamic ram: 98604 of which 0 recycled
                                            Exception stack ram used: 384
                                            Never used ram: 6560
                                            Tasks: NETWORK(ready,544) HEAT(blocked,1232) MAIN(running,3844) IDLE(ready,200)
                                            Owned mutexes:
                                            === Platform ===
                                            Last reset 00:03:16 ago, cause: software
                                            Last software reset at 2019-01-07 01:09, reason: User, spinning module GCodes, available RAM 6600 bytes (slot 2)
                                            Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
                                            Error status: 4
                                            Free file entries: 10
                                            SD card 0 detected, interface speed: 20.0MBytes/sec
                                            SD card longest block write time: 8.3ms, max retries 0
                                            MCU temperature: min 33.1, current 33.4, max 33.8
                                            Supply voltage: min 24.1, current 24.3, max 24.4, under voltage events: 0, over voltage events: 0, power good: yes
                                            Driver 0: standstill, SG min/max 0/252
                                            Driver 1: standstill, SG min/max 0/229
                                            Driver 2: standstill, SG min/max 0/140
                                            Driver 3: standstill, SG min/max not available
                                            Driver 4: standstill, SG min/max not available
                                            Date/time: 2019-01-07 01:12:34
                                            Cache data hit count 728214923
                                            Slowest loop: 35.97ms; fastest: 0.07ms
                                            I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0
                                            === Move ===
                                            Hiccups: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm: 230, MaxWait: 26033ms, Underruns: 0, 0
                                            Scheduled moves: 74, completed moves: 74
                                            Bed compensation in use: mesh
                                            Bed probe heights: 0.000 0.000 0.000 0.000 0.000
                                            === Heat ===
                                            Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
                                            === GCodes ===
                                            Segments left: 0
                                            Stack records: 2 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 ===
                                            Slowest loop: 56.46ms; fastest: 0.00ms
                                            Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
                                            HTTP sessions: 1 of 8

                                            • WiFi -
                                              Network state is running
                                              WiFi module is connected to access point
                                              Failed messages: pending 0, notready 0, noresp 0
                                              WiFi firmware version 1.22beta1(30b14
                                              WiFi MAC address b4:e6:2d:53:0a:f4
                                              WiFi Vcc 3.36, reset reason Turned on by main processor
                                              WiFi flash size 4194304, free heap 28576
                                              WiFi IP address 192.168.11.39
                                              WiFi signal strength -44dBm, reconnections 0, sleep mode modem
                                              Socket states: 0 0 0 0 0 0 0 0
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