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    Cannot connect Duet Wifi to new Wifi Router

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    • A Former User?
      A Former User @GaRv3
      last edited by

      @GaRv3 said in Cannot connect Duet Wifi to new Wifi Router:

      Should I simply leave the old file in place?

      it won't do any harm, and will be needed if you should ever wish to downgrade. however as 2.03 is likely using wifi firmware 1.23 i doubt there is any change relevant to the issue; but won't hurt to be up to date. while you're at it do confirm the wifi firmware is 1.23. (its part of the M122 output.

      1 Reply Last reply Reply Quote 0
      • GaRv3undefined
        GaRv3
        last edited by

        Ok, so I updated the frimware and Wifi server:

        M115
        FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.05.1 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2020-02-09b1
        M122
        === Diagnostics ===
        RepRapFirmware for Duet 2 WiFi/Ethernet version 2.05.1 running on Duet WiFi 1.02 or later
        Board ID: 08DGM-95BLL-N6PSS-6J1F0-3S86R-90TVM
        Used output buffers: 1 of 24 (1 max)
        === RTOS ===
        Static ram: 25712
        Dynamic ram: 93132 of which 0 recycled
        Exception stack ram used: 264
        Never used ram: 11964
        Tasks: NETWORK(ready,540) HEAT(blocked,1232) MAIN(running,3824) IDLE(ready,160)
        Owned mutexes:
        === Platform ===
        Last reset 00:04:44 ago, cause: software
        Last software reset at 2020-01-26 16:51, reason: User, spinning module GCodes, available RAM 11284 bytes (slot 0)
        Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
        Error status: 0
        Free file entries: 10
        SD card 0 detected, interface speed: 20.0MBytes/sec
        SD card longest block write time: 0.0ms, max retries 0
        MCU temperature: min 24.3, current 27.3, max 27.4
        Supply voltage: min 0.0, current 0.0, max 0.0, under voltage events: 0, over voltage events: 0, power good: no
        Driver 0: ok, SG min/max not available
        Driver 1: ok, SG min/max not available
        Driver 2: ok, SG min/max not available
        Driver 3: ok, SG min/max not available
        Driver 4: ok, SG min/max not available
        Date/time: 1970-01-01 00:00:00
        Cache data hit count 513307291
        Slowest loop: 4.16ms; fastest: 0.05ms
        I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
        === Move ===
        Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
        Bed compensation in use: none, comp offset 0.000
        === DDARing ===
        Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
        === 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 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 ===
        Slowest loop: 1173.89ms; fastest: 0.00ms
        Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
        HTTP sessions: 0 of 8
        - WiFi -
        Network state is changing mode
        WiFi module is trying to connect
        Failed messages: pending 0, notready 0, noresp 0
        WiFi firmware version 1.23
        WiFi MAC address 2c:3a:e8:0b:17:0f
        WiFi Vcc 3.32, reset reason Turned on by main processor
        WiFi flash size 4194304, free heap 27928
        Socket states: 0 0 0 0 0 0 0 0
        
        

        The problem persists.

        About the physical conditions:

        The printer is right next to the router (ap) with one wall in between. The signal strength should be easily sufficient with the 2.4GHz wifi. I even get full 5GHz signal strength right next to the printer on my phone.
        There are many wifi signals around here. It's a pretty crouded place. But I made sure to use the wifi channel that has the fewest SSIDS. Currently it's 2AM and there should be near to no interference.

        A Former User? 1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User @GaRv3
          last edited by A Former User

          @GaRv3 said in Cannot connect Duet Wifi to new Wifi Router:

          But I made sure to use the wifi channel that has the fewest SSIDS.

          is it a fixed channel (not auto?), if auto it could be the Duets wifi module cannot follow across all channels due to differing country regulations, but I have no idea whats set for either product.

          re signal strength, see if you can run M122 repeatedly and catch the Duet in a moment where it is connected and shows its signal strength, it will likely have (significantly) lower receive sensitivity than your router (and phone)

          1 Reply Last reply Reply Quote 0
          • GaRv3undefined
            GaRv3
            last edited by

            It's channel 11 fixed.

            M122 always reports

            Network state is changing mode
            WiFi module is trying to connect
            
            

            Doesn't seem I can get a report in the very short time frame, when a connection is established.

            But I am shure, the signal strength is very good. This can't be the issue. I can easily establish a very good wifi connection two rooms further from the router with any device.

            A Former User? 1 Reply Last reply Reply Quote 0
            • A Former User?
              A Former User @GaRv3
              last edited by A Former User

              @GaRv3 said in Cannot connect Duet Wifi to new Wifi Router:

              It's channel 11 fixed.

              Channel=2412MHz;

              does not compute, but might not be relevant as its usally 12-14 that gives problems.

              But I am shure, the signal strength is very good. This can't be the issue.

              Don't underestimate the ESP8266 module's ability to not get a signal; after all as it stands the options are defective module or poor singal as far as I can tell.

              1 Reply Last reply Reply Quote 0
              • GaRv3undefined
                GaRv3
                last edited by GaRv3

                Some more information on the 2.4GHz wifi:

                SSID: GarMir 2,4GHz
                SSID broadcast: off
                Security: WPA2
                Wifi mode: Mixed 802.11 g/n
                Channel: 11
                Bandwidth: 20/40 MHz

                By the way: Sometimes I can see the Duet in my router status as

                Name: unknown
                IPv4: 192.168.0.37
                IPv6:
                MAC: 2C:3A:E8:0B:17:0F
                WiFi: 2.4GHz
                

                with full signal strength.

                A Former User? 1 Reply Last reply Reply Quote 0
                • A Former User?
                  A Former User
                  last edited by

                  If its inconvenient to move the printer you could try switching roles; put the Duet in AP mode and see what signal strength you get where the router is (although it won't quite be an apples to apples thing).

                  https://duet3d.dozuki.com/Wiki/Gcode#Section_M589_Configure_access_point_parameters

                  1 Reply Last reply Reply Quote 0
                  • A Former User?
                    A Former User @GaRv3
                    last edited by

                    @GaRv3 said in Cannot connect Duet Wifi to new Wifi Router:

                    with full signal strength.

                    what it transmits and what it receives could differ by a lot tbh.

                    1 Reply Last reply Reply Quote 0
                    • GaRv3undefined
                      GaRv3
                      last edited by GaRv3

                      Yeah, but to be honest, this should really not be a thing.
                      The physical distance between the router and the Duet is maybe 0.5m. It's literally just this one wall in between.

                      I will actually try to remove the special chars from the wifi SSID and password now to see if this could be a thing.

                      Edit: No success

                      1 Reply Last reply Reply Quote 0
                      • A Former User?
                        A Former User
                        last edited by

                        All I'm saying is the Duet people are normally more than willing to replace faulty boards, but I'd hate to see you waste time with a replacement if the problem isn't the board; which I don't think is the case but thats just my $0.02.

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                        • GaRv3undefined
                          GaRv3
                          last edited by GaRv3

                          I don't think it is a hardware problem with the board. This would be a strange coincidence cause it worked until I changed the router.

                          I will power up my old router now an check if the Duet connects to it.

                          Edit:
                          Connecting to the old router works just fine.
                          This has to be some kind of incompatibility...

                          A Former User? 1 Reply Last reply Reply Quote 0
                          • A Former User?
                            A Former User @GaRv3
                            last edited by

                            @GaRv3 said in Cannot connect Duet Wifi to new Wifi Router:

                            Connecting to the old router works just fine.

                            samme ssid and key?

                            GaRv3undefined 1 Reply Last reply Reply Quote 0
                            • bondusundefined
                              bondus
                              last edited by bondus

                              I used to work with wifi routers a few years back and spent countless hours staring at sniffed packet logs to figure out why things did not connect.

                              Some things are simply not compatible with each other. It has nothing to do with radio quality, just that one of the parts involved has interpreted the standard in a different way. If it's a ISP provided router it will be the lowest bidder that has interpreted the standard...

                              GaRv3undefined 1 Reply Last reply Reply Quote 0
                              • GaRv3undefined
                                GaRv3 @A Former User
                                last edited by

                                @bearer
                                Tried same SSID and PW on the new one. Yes

                                1 Reply Last reply Reply Quote 0
                                • GaRv3undefined
                                  GaRv3 @bondus
                                  last edited by

                                  @bondus
                                  This is so frustrating. What is the use of standards if no one sticks to them?

                                  A Former User? droftartsundefined 2 Replies Last reply Reply Quote 1
                                  • Danalundefined
                                    Danal
                                    last edited by

                                    9c3fc995-3441-41ad-9a4e-0efeb771fb13-image.png

                                    Delta / Kossel printer fanatic

                                    1 Reply Last reply Reply Quote 1
                                    • A Former User?
                                      A Former User @GaRv3
                                      last edited by

                                      @GaRv3 said in Cannot connect Duet Wifi to new Wifi Router:

                                      What is the use of standards if no one sticks to them?

                                      see if the new one has some ultra mega max 2000 multimedia streaming extensions and try fixing the channel width to 20mhz and setting bgn mode to a lower common denominator, apart from that sounds like you might be better off briding the Duet to the old router?

                                      GaRv3undefined 1 Reply Last reply Reply Quote 0
                                      • droftartsundefined
                                        droftarts administrators @GaRv3
                                        last edited by droftarts

                                        @GaRv3 Did you check/update the firmware on the router? Also, what router is it?

                                        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

                                        1 Reply Last reply Reply Quote 0
                                        • GaRv3undefined
                                          GaRv3
                                          last edited by

                                          It's a so called "Vodafone Station".
                                          To be precise it is the ARRIS Touchstone TG3442DE.

                                          The firmware gets updated by the ISP automatically.

                                          1 Reply Last reply Reply Quote 0
                                          • GaRv3undefined
                                            GaRv3 @A Former User
                                            last edited by GaRv3

                                            @bearer said in Cannot connect Duet Wifi to new Wifi Router:

                                            see if the new one has some ultra mega max 2000 multimedia streaming extensions and try fixing the channel width to 20mhz and setting bgn mode to a lower common denominator, apart from that sounds like you might be better off briding the Duet to the old router?

                                            Limiting to 20 MHz didn't make any difference.
                                            The mode cannot be changed to anything but "Mixed 802.11 g/n" for the 2.4 GHz wifi on this router.

                                            Edit: I cannot use the old router as an access point because I have to send it back to the ISP soon.

                                            1 Reply Last reply Reply Quote 0
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