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    Duet2 wifi stuck repeating Wifi Error.

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    Duet Hardware and wiring
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    • zBeebleundefined
      zBeeble
      last edited by

      I generally have at least 2 computers (so I expect that to be 4 connections from time-to-time)... go this just now:

      WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns

      ... but can have as many as 3 or 4. Is this number tunable?

      This doesn't seem to be my problem, tho... as it should recover.

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

        @zBeeble From the https://docs.duet3d.com/en/User_manual/Troubleshooting/WiFi_troubleshooting page, two things that might be relevant:

        • In Duet Web Control, in the Settings > Machine specific > Communication section, check that "Maximum number of AJAX retries" is at least 3.

        • Is the connection stable when the printer is idle, but unreliable when printing? If so then there may be too few CPU cycles to service the network interface, because of an excessive step pulse rate.

          • Check the M122 report after a disconnection during a print, or after completing the print, and look at the number of 'hiccups' ('MaxReps' in old firmware versions) figure in the 'DDARing' or 'Move' section of the diagnostics.
          • This value should be kept below about 50. If it is higher, reduce either microstepping (M350) or maximum speed (M203).
          • Please note, hiccups and MaxReps is reset when you run M122 so only the value the first time you run M122 after a disconnection or completion of a print is significant.

        Edit: Sorry, the above is old info, and MaxReps isn't reported in the current firmware M122 report. I've asked @dc42 how this information is reported now.
        Edit: Updated the above with info from dc42.

        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
        • rechrtbundefined
          rechrtb @zBeeble
          last edited by

          @zBeeble said in Duet2 wifi stuck repeating Wifi Error.:

          as generating a line every so often ... printer on or not.

          But the machine is connected to the home server ... which is always on. I'm using minicom ... which is set to log all traffic

          Reply

          Those "already 4 conns" should be normal, especially when there are multiple clients with the web interface open.

          1 Reply Last reply Reply Quote 0
          • zBeebleundefined
            zBeeble
            last edited by

            So... been printing OK... for awhile. Just started acting up today again. Oddly, the serial output is "chunky" .... and incomplete. One recent query:

            m122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.5.1 (2024-04-19 14:40:46) running on Duet WiFi 1.02 or later
Board ID: 08DDM-9FAM2-LW4SD-6J9F8-3SN6J-T3ZRY
Used output buffers: 1 of 26 (26 max)
=== RTOS ===
Static ram: 23256
Dynamic ram: 72928 of which 12 recycled
Never used RAM 13540, free system stack 110 words
Tasks: NETWORK(1,ready,15.7%,175) HEAT(3,nWait 5,0.1%,307) Move(4,nWait 5,2.9%,298) MAIN(1,running,81.3%,711) IDLE(0,ready,0.0%,
29), total 100.0%
Owned mutexes: WiFi(NETWORK) USB(MAIN)
=== Platform ===
Last reset 10:03:58 ago, cause: power up
Last software reset at 2024-07-29 10:46, reason: User, Gcodes spinning, available RAM 17140, 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
MCU temperature: min 35.4, current 35.9, max 36.9
Supply voltage: min 11.0, current 12.2, max 12.3, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 99/6, heap memory allocated/used/recyclable 2048/932/816, gc cycles 1
Events: 0 queued, 0 completed
Driver 0: ok, SG min 0
Driver 1: ok, SG min 0
Driver 2: ok, SG min 0
Driver 3: ok, SG min 0
Driver 4: standstill, SG min n/a
Driver 5:
Driver 6:
Driver 7:
Driver 8:
Driver 9:
Driver 10:
Driver 11:
Date/time: 2024-07-30 01:04:58
Cache data hit count 4294967295
Slowest loop: 11.10ms; fastest: 0.20ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 9
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 1.5ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, segments created 23, maxWait 448ms, bed compensation in use: mesh, height map offset -0.031, max steps late 0, m
in interval 0, bad calcs 0, ebfmin 0.00, ebfmax 1.00
next step interrupt due in 20 ticks, disab
            1 Reply Last reply Reply Quote 0
            • zBeebleundefined
              zBeeble
              last edited by

              Notably, on one output not shown, "slowest loop" was around 146ms.

              1 Reply Last reply Reply Quote 0
              • zBeebleundefined
                zBeeble
                last edited by

                I've turned on the debugging for 14 and 1 (wifi and network). Lots of chatter, but the printer is definitely acting up. The serial is no longer chunky, but at one point, I disconnected the serial ... which would reset the driver on the server.... and probably the duet, too.

                m111 and chatter look like:

                Debugging enabled for modules: Network(1 - 0xffffffff) WiFi(14 - 0xffffffff)
Debugging disabled for modules: Platform(0) Webserver(2) Gcodes(3) Move(4) Heat(5) Kinematics(6) InputShaping(7) unused(8) Print
Monitor(9) Storage(10) PortControl(11) DuetExpansion(12) FilamentSensors(13) Display(15) SbcInterface(16) CAN(17) Expansion(18)
New conn on socket 0 for local port 80
Found responder
Received 367 bytes
New conn on socket 1 for local port 80
Found responder
Received 329 bytes
New conn on socket 0 for local port 80
Found responder
New conn on socket 1 for local port 80
Found responder
Received 329 bytes
Received 367 bytes
New conn on socket 0 for local port 80
                1 Reply Last reply Reply Quote 0
                • Phaedruxundefined Phaedrux marked this topic as a question
                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  Have you tried updating to 3.5.2 yet? Or the 3.6 alpha release? I think the beta is upcoming as well.

                  Z-Bot CoreXY Build | Thingiverse Profile

                  zBeebleundefined 1 Reply Last reply Reply Quote 0
                  • zBeebleundefined
                    zBeeble
                    last edited by

                    The printer was idle, so I shut off the constant network chatter. wifi debug was still on (as it's fairly quiet). During the idle day, it said this:

                    Debugging enabled for modules: WiFi(14 - 0xffffffff)
Debugging disabled for modules: Platform(0) Network(1) Webserver(2) Gcodes(3) Move(4) Heat(5) Kinematics(6) InputShaping(7) unus
ed(8) PrintMonitor(9) Storage(10) PortControl(11) DuetExpansion(12) FilamentSensors(13) Display(15) SbcInterface(16) CAN(17) Exp
ansion(18)
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns

                    Now.... 2 computers look at the web server and the web server is on an RFC 1918 address behind NAT ... so not general internet exposed.

                    1 Reply Last reply Reply Quote 0
                    • zBeebleundefined
                      zBeeble @Phaedrux
                      last edited by

                      @Phaedrux said in Duet2 wifi stuck repeating Wifi Error.:

                      Have you tried updating to 3.5.2 yet? Or the 3.6 alpha release? I think the beta is upcoming as well.

                      I'm a little bit upgrade adverse ... you can convince me, but equally, I don't believe this is upgrade related.

                      1 Reply Last reply Reply Quote 0
                      • zBeebleundefined
                        zBeeble
                        last edited by

                        OOB ... looking at your debug message ... you could probably significantly cut binary size by cutting /home/renz/Projects from the path of all debug messages --- ie: cut to the root of the project.

                        1 Reply Last reply Reply Quote 0
                        • zBeebleundefined
                          zBeeble
                          last edited by

                          OK. Now it's full-on inaccessible.

                          Lots of these lines scrolling on the console.

                          ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
                          1 Reply Last reply Reply Quote 0
                          • zBeebleundefined
                            zBeeble
                            last edited by

                            And just to be clear, two local computers are pointing at it and no network traffic (as expected) is coming from the router for it.

                            1 Reply Last reply Reply Quote 0
                            • zBeebleundefined
                              zBeeble
                              last edited by

                              This is the log from the first few glitches above (posted here) through starting a new print and then it glitching hard:

                              Debugging enabled for modules: WiFi(14 - 0xffffffff)
Debugging disabled for modules: Platform(0) Network(1) Webserver(2) Gcodes(3) Move(4) Heat(5) Kinematics(6) InputShaping(7) unus
ed(8) PrintMonitor(9) Storage(10) PortControl(11) DuetExpansion(12) FilamentSensors(13) Display(15) SbcInterface(16) CAN(17) Exp
ansion(18)
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
Done printing file
Finished printing file 0:/gcodes/CFFFP_DeckStand_Anker.gcode, print time was 13h 4m
ResponseTimeout, pending=1
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseBusy
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
                              1 Reply Last reply Reply Quote 0
                              • zBeebleundefined
                                zBeeble
                                last edited by

                                I delivered m111 p1 s1, and this is the changed repeating output:

                                WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
1ResponseTimeout, pending=1
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Con^?/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578
): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
WiFi: /hom^?s/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
ResponseTimeout, pending=1
ResponseTimeout, pending=1

Debugging enabled for modules: Network(1 - 0xffffffff) WiFi(14 - 0xffffffff)
Debugging disabled for modules: Platform(0) Webserver(2) Gcodes(3) Move(4) Heat(5) Kinematics(6) InputShaping(7) unused(8) Print
Monitor(9) Storage(10) PortControl(11) DuetExpansion(12) FilamentSensors(13) Display(15) SbcInterface(16) CAN(17) Expansion(18)
ResponseTimeout, pending=1
Bad recv status size
ResponseTimeout, pending=1
Bad recv status size
ResponseTimeout, pending=1
Bad recv status size
ResponseTimeout, pending=1
Bad recv status size
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projec^?/home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Con^?uet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/^?t 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
WiFi: /home/renz/Projects/Duet3D/WiFiSocketServerRTOS/src/Connection.cpp(578): refused conn on po^?/Connection.cpp(578): refused conn on port 80 already 4 conns
ResponseTimeout, pending=1
Bad recv status size
ResponseTimeout, pending=1
Bad recv status size
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