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Mini 5+ Wifi connection unstable

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  • undefined
    Phaedrux Moderator @oc_geek
    last edited by Phaedrux 14 Jun 2021, 21:59

    @oc_geek said in Mini 5+ Wifi connection unstable:

    and no it is not related to Access point / the Wifi network etc... so please do not start that.

    All the same, would you be able to test a different wifi channel?

    Are you familiar with WireShark?

    Z-Bot CoreXY Build | Thingiverse Profile

    undefined 1 Reply Last reply 15 Jun 2021, 08:26 Reply Quote 0
    • undefined
      oc_geek @Phaedrux
      last edited by oc_geek 15 Jun 2021, 08:26

      @phaedrux ..no
      tbh this is loose of time investigation (as i wrote since start...)
      My Wifi works perfectly fine and my modem already optimizes the channels

      20a8bf1d-dc36-49fa-82f7-f78db2f0b68e-image.png

      Unless you are aware of an issue on the card Wifi on a specific channel (which i'm not) this ain't that problem

      Problem as already stated is when the printer is in idle state.
      This again happen this morning after printing all night (and there were no connectivity issues by then)

      The print lasted 8h, then It went to idle and the issue came up...
      sometimes it is few connect/disconnect instances some other times it starts and end never ends + "files read issue"
      ... it is something in the FW i believe

      4e9b0e3c-f81c-4426-a280-936d44d29cb2-image.png

      1d6e2819-cde9-4e60-82bb-6b581ee05471-image.png

      undefined 1 Reply Last reply 15 Jun 2021, 08:46 Reply Quote 0
      • undefined
        dc42 administrators @oc_geek
        last edited by dc42 15 Jun 2021, 08:46

        @oc_geek have you tried going to Settings/Machine specific/General in DWC and increasing "Number of maximum AJAX retries" above its default value of 2 ?

        Unless you are aware of an issue on the card Wifi on a specific channel (which i'm not) this ain't that problem

        We have some evidence that low channel numbers (typically 1) are sometimes problematic. What works best also depends on what other devices use the 2.4GHz band, e.g. cordless phones and leaky microwave ovens.

        How have you positioned the antenna of the Duet?

        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

        undefined 3 Replies Last reply 15 Jun 2021, 10:29 Reply Quote 0
        • undefined
          Diamondback
          last edited by 15 Jun 2021, 08:53

          Here's my channel usage (green is the currently used one)
          2021-06-15_10-52-39.png

          1 Reply Last reply Reply Quote 0
          • undefined
            droftarts administrators
            last edited by 15 Jun 2021, 09:11

            @diamondback judging by the graph, you and @oc_geek appear to be using the same router? What is it? Can you also post the response to M122?

            A wireshark trace will help, because it will show which end is causing the disconnections, and give us somewhere to start investigating. As we’re not experiencing these issues in our testing or setups, we’re reliant on users to do this. A directionless investigation will frustrate everyone.

            Ian

            Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

            undefined undefined 2 Replies Last reply 15 Jun 2021, 09:23 Reply Quote 0
            • undefined
              Diamondback @droftarts
              last edited by 15 Jun 2021, 09:23

              @droftarts The UI is from Fritz! routers, in my specific case it's a Fritz!Box 7490.

              M122

              M122
              === Diagnostics ===
              RepRapFirmware for Duet 2 WiFi/Ethernet version 3.3RC3 (2021-05-26 13:47:14) running on Duet WiFi 1.02 or later + DueX5
              Board ID: 08DGM-917NK-F2MS4-7J9F2-3S86N-TYTWF
              Used output buffers: 3 of 24 (24 max)
              === RTOS ===
              Static ram: 23876
              Dynamic ram: 80812 of which 268 recycled
              Never used RAM 6604, free system stack 98 words
              Tasks: NETWORK(ready,73.1%,227) ACCEL(notifyWait,0.0%,334) HEAT(delaying,1.1%,309) Move(notifyWait,9.6%,283) DUEX(notifyWait,0.0%,24) MAIN(running,15.8%,443) IDLE(ready,0.4%,29), total 100.0%
              Owned mutexes: WiFi(NETWORK)
              === Platform ===
              Last reset 13:22:58 ago, cause: software
              Last software reset at 2021-06-14 21:54, reason: User, GCodes spinning, available RAM 6716, slot 2
              Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
              Error status: 0x04
              Aux0 errors 0,0,0
              Step timer max interval 0
              MCU temperature: min 28.3, current 33.2, max 41.4
              Supply voltage: min 23.9, current 24.3, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes
              Heap OK, handles allocated/used 99/8, heap memory allocated/used/recyclable 2048/346/234, gc cycles 1
              Driver 0: position 1600, standstill, SG min/max 0/1023
              Driver 1: position 49280, standstill, SG min/max 0/1023
              Driver 2: position 12733, standstill, SG min/max 0/529
              Driver 3: position 24000, standstill, SG min/max 0/1023
              Driver 4: position 0, standstill, SG min/max 0/1023
              Driver 5: position 0, standstill, SG min/max not available
              Driver 6: position 0, standstill, SG min/max not available
              Driver 7: position 0, standstill, SG min/max 0/1023
              Driver 8: position 0, standstill, SG min/max 0/1023
              Driver 9: position 0, standstill, SG min/max 0/1023
              Driver 10: position 0
              Driver 11: position 0
              Date/time: 2021-06-15 11:17:03
              Cache data hit count 4294967295
              Slowest loop: 215.02ms; fastest: 0.14ms
              I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
              === Storage ===
              Free file entries: 10
              SD card 0 detected, interface speed: 20.0MBytes/sec
              SD card longest read time 1.4ms, write time 25.1ms, max retries 0
              === Move ===
              DMs created 83, maxWait 26384846ms, bed compensation in use: mesh, comp offset 0.000
              === MainDDARing ===
              Scheduled moves 262247, completed moves 262247, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
              === AuxDDARing ===
              Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
              === Heat ===
              Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
              === GCodes ===
              Segments left: 0
              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
              USB is idle in state(s) 0
              Aux is idle in state(s) 0
              Trigger is idle in state(s) 0
              Queue is idle in state(s) 0
              LCD is idle in state(s) 0
              Daemon is idle in state(s) 0
              Autopause is idle in state(s) 0
              Code queue is empty.
              === DueX ===
              Read count 5, 0.01 reads/min
              === Network ===
              Slowest loop: 92.76ms; fastest: 0.00ms
              Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
              HTTP sessions: 1 of 8
              - WiFi -
              Network state is active
              WiFi module is connected to access point
              Failed messages: pending 0, notready 0, noresp 0
              WiFi firmware version 1.26
              WiFi MAC address b4:e6:2d:52:f2:a9
              WiFi Vcc 3.42, reset reason Power up
              WiFi flash size 4194304, free heap 26536
              WiFi IP address 192.168.1.31
              WiFi signal strength -61dBm, mode 802.11n, reconnections 0, sleep mode modem
              Clock register 00002002
              Socket states: 0 0 0 0 0 0 0 0

              (This is after a print and sitting idle for a while)

              Please note that for me, these issues started appearing with one of the beta/RC versions of 3.3 (can't quite tell which, probably beta3 and later), never seen them before. The issue also happens very irregularly for me, haven't seen it the last two days, the day before it was happening constantly...

              Haven't added any new devices to my network in the same timespan, no new external networks appeared, no new appliances (microwave etc).
              Can't rule out some stuff getting an update and doing weird things of course (think google products)

              1 Reply Last reply Reply Quote 0
              • undefined
                oc_geek @dc42
                last edited by oc_geek 15 Jun 2021, 10:29

                @dc42

                @dc42 said in Mini 5+ Wifi connection unstable:

                @oc_geek have you tried going to Settings/Machine specific/General in DWC and increasing "Number of maximum AJAX retries" above its default value of 2 ?

                Will try that suggestion. Now i set it to 4

                Unless you are aware of an issue on the card Wifi on a specific channel (which i'm not) this ain't that problem

                We have some evidence that low channel numbers (typically 1) are sometimes problematic. What works best also depends on what other devices use the 2.4GHz band, e.g. cordless phones and leaky microwave ovens.

                That is ruled out (not using those spectrum areas)

                How have you positioned the antenna of the Duet?

                external to the printer

                377bb679-ff08-4fad-80fb-83e096468f50-image.png

                ... folks we run in circles this way

                It IS NOT a wifi issue.
                Files trasfers are VERY fast
                Is is something else related to the idle state

                undefined 1 Reply Last reply 15 Jun 2021, 10:31 Reply Quote 0
                • undefined
                  Diamondback @oc_geek
                  last edited by 15 Jun 2021, 10:31

                  @oc_geek That doesn't mean it can't be something external... Could be a broken appliance, could be some phone that got recently updated, could be a rogue device etc.
                  Could also be a bad WiFi firmware on the Duet, but that's certainly not the only option.

                  undefined undefined 2 Replies Last reply 15 Jun 2021, 10:45 Reply Quote 0
                  • undefined
                    oc_geek @dc42
                    last edited by oc_geek 15 Jun 2021, 10:43

                    @droftarts said in Mini 5+ Wifi connection unstable:

                    Can you also post the response to M122?

                    Mine was already attached in the original post

                    A wireshark trace will help, because it will show which end is causing the disconnections, and give us somewhere to start investigating. As we’re not experiencing these issues in our testing or setups, we’re reliant on users to do this. A directionless investigation will frustrate everyone.

                    Will try that as well... but i'm already guessing where it is happening...don't we ?

                    undefined 1 Reply Last reply 15 Jun 2021, 10:47 Reply Quote 0
                    • undefined
                      oc_geek @Diamondback
                      last edited by 15 Jun 2021, 10:45

                      @diamondback said in Mini 5+ Wifi connection unstable:

                      @oc_geek That doesn't mean it can't be something external... Could be a broken appliance, could be some phone that got recently updated, could be a rogue device etc.
                      Could also be a bad WiFi firmware on the Duet, but that's certainly not the only option.

                      Sorry pale but after 3 replaced cards and this beeing the only device on my wireleass having issues....yes it is the only option

                      1 Reply Last reply Reply Quote 0
                      • undefined
                        chrishamm administrators @Diamondback
                        last edited by 15 Jun 2021, 10:46

                        @diamondback @oc_geek I've always used my WiFi Duets with a FritzBox 6490 and I haven't seen any connection drops yet. Do you have your PC connected via Ethernet and do the same problems occur when DWC is connected from a different device (cell phone or tablet)? Does M122 report an increasing number of reconnects? If the number of reconnects remains 0, please try to connect to your Duet from a private browsing window to rule out potential interference from third-party addons.

                        If none of these points help, we'll need a Wireshark dump that contains the traffic between your PC and Duet. That should help us figure out what's going on.

                        Duet software engineer

                        undefined 1 Reply Last reply 15 Jun 2021, 11:04 Reply Quote 0
                        • undefined
                          droftarts administrators @oc_geek
                          last edited by 15 Jun 2021, 10:47

                          @oc_geek said in Mini 5+ Wifi connection unstable:

                          @droftarts said in Mini 5+ Wifi connection unstable:

                          @diamondback judging by the graph, you and @oc_geek appear to be using the same router? What is it? Can you also post the response to M122?

                          Mine was already attached in the original post

                          Yes, your M122 was. I was asking what router you had, as it appears to be the same as @Diamondback, judging by the graphic.

                          Ian

                          Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

                          undefined 1 Reply Last reply 15 Jun 2021, 10:59 Reply Quote 0
                          • undefined
                            oc_geek @droftarts
                            last edited by 15 Jun 2021, 10:59

                            @droftarts said in Mini 5+ Wifi connection unstable:

                            I was asking what router you had

                            this

                            35387b68-3251-433d-b959-e157f7477c00-image.png

                            1 Reply Last reply Reply Quote 0
                            • undefined
                              Diamondback @chrishamm
                              last edited by 15 Jun 2021, 11:04

                              @chrishamm PC is connected to router via Ethernet, yes. When the issue starts appearing again I will try the things you mentioned.
                              Thanks for the help 🙂

                              1 Reply Last reply Reply Quote 0
                              • undefined
                                oc_geek @droftarts
                                last edited by oc_geek 15 Jun 2021, 11:07

                                @droftarts said in Mini 5+ Wifi connection unstable:
                                @chrishamm

                                A wireshark trace will help, because it will show which end is causing the disconnections, and give us somewhere to start investigating

                                Something like this when the event occurs is what you are looking for ?
                                (had to rename the file cse does not allow to upload otherwise, just remove .gcode extension....)

                                WS Capture test

                                undefined 1 Reply Last reply 15 Jun 2021, 14:07 Reply Quote 0
                                • undefined
                                  tomasf
                                  last edited by 15 Jun 2021, 12:06

                                  I've always had unstable Wi-Fi with Duet, ever since my first Duet Wifi, regardless of where I put the printer relative to the router and with different channels, router brands, etc. Then I switched to using an SBC and let the Raspberry Pi handle the Wi-Fi connection and it's been rock solid ever since.

                                  undefined 1 Reply Last reply 15 Jun 2021, 12:42 Reply Quote 0
                                  • undefined
                                    oc_geek @tomasf
                                    last edited by 15 Jun 2021, 12:42

                                    @tomasf yeah which again pinpoints the issue... i only though too late that i shall have opted for the ETH variant and use an access point with GE port...and issue solved.

                                    1 Reply Last reply Reply Quote 0
                                    • undefined
                                      chrishamm administrators @oc_geek
                                      last edited by 15 Jun 2021, 14:07

                                      @oc_geek Thanks for the Wireshark dump but it looks good, I cannot see any connection drops between your PC and the Duet in there. No timeouts, no resets, nothing.

                                      How do you connect to your Duet, do you enter <hostname>.local or just <hostname> in your browser? If it's one of these two, please connect via the IPv4 address instead and check if that improves things. You can send M552 over DWC to get it.

                                      Duet software engineer

                                      undefined 1 Reply Last reply 15 Jun 2021, 14:22 Reply Quote 0
                                      • undefined
                                        oc_geek @chrishamm
                                        last edited by 15 Jun 2021, 14:22

                                        @chrishamm said in Mini 5+ Wifi connection unstable:

                                        @oc_geek Thanks for the Wireshark dump but it looks good, I cannot see any connection drops between your PC and the Duet in there. No timeouts, no resets, nothing.

                                        How do you connect to your Duet, do you enter <hostname>.local or just <hostname> in your browser? If it's one of these two, please connect via the IPv4 address instead and check if that improves things. You can send M552 over DWC to get it.

                                        Yeah you see nothing because as i wrote that was a sample example.... taken when the issue wasn't there

                                        Connecting via IP or hostname has zero influence whatsoever

                                        1 Reply Last reply Reply Quote 0
                                        • undefined
                                          oc_geek @dc42
                                          last edited by oc_geek 16 Jun 2021, 07:34

                                          @dc42 said in Mini 5+ Wifi connection unstable:

                                          have you tried going to Settings/Machine specific/General in DWC and increasing "Number of maximum AJAX retries" above its default value of 2 ?

                                          I've set it to 4 yesterday
                                          so far it seems to hold ; after the night print in the morning i've not found disconnects/reconnects yet... (touching wood)
                                          I'll let you know if the issue comes up again
                                          Thanks for the advice

                                          undefined undefined 2 Replies Last reply 16 Jun 2021, 11:19 Reply Quote 0
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