@brian i have resolved the connection problem following the advice on this post https://www.instructables.com/Duet-WiFi-Activate-and-Connect-the-WiFi-When-It-Do/

@t3p3tony I think there is a step missing in the calibrate the Z probe trigger height.

I followed the steps over and over again and the bed kept stopping at a distance too far from the nozzle. Then it occurred to me that the z value in the config.g file may be adding to the value the duet was reporting. So i set that value to 0 and then the bed when all the way up and too far. So then i used trial and error in the config file to get it just right. It took many tries but at last count it worked right. Final value so far is 2.87.

@brian thanks for everyone's help

@rushmere3d Thank you.

@rushmere3d Thank you.

@phaedrux Heres the config. Oddly it says v 3.3 yet the DWC says v3.4

Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Wed Feb 02 2022 14:20:11 GMT-0800 (Pacific Standard Time)

; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Brian's Build 3" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X32 Y32 Z32 E32 I0 ; configure microstepping without interpolation
M92 X320.00 Y320.00 Z2560.00 E1400.00 ; set steps per mm all work except E
M566 X800.00 Y800.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)dropping 100 at a time from 1200?
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X900.00 Y900.00 Z200.00 E200.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z1600 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X430 Y410 Z650 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z2 S2 ; configure Z-probe endstop for high end on Z

; Z-Probe
M558 P1 C"zprobe.in+!pson" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds
G31 P500 X0 Y0 Z2.48 ; set Z probe trigger value, offset and trigger height 2.1 0.4 nzzl
M557 X15:215 Y15:195 S20 ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S310 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
;M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
;M143 H1 S310 ; set temperature limit for heater 1 to 280C
;M143 S300 ; Set maximum heater temperature to 300C
M140 H-1 ; Disable heated bed
;M305 P1 X201 ; (board v0.4)
;M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1
;M305 P2 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 2
M307 H1 A350 C500 D50 B1; I added this line for pellet extruder C500 gives more timeout time; re-ativated as too many timeouts

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 S"Hot End" D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined
M501 ; Load config-overrides.g
;T0

Upgraded to v3.4 from v3.3 and now cannot extrude or retract in the DWC, menus is greyed out. Also cannot move axis unless fully homed, which is annoying. Otherwise everything seems to be working.

@phaedrux Thank you, i will do that.

@dc42 WDC 3.4.0 I was able to get it working by copying the file to the sd card and then running the upload again. Then right away had timeout issues as soon as a print started but been through that before so replaced M307 line, with M307 H1 A350 C500 D50 B1. Everything seems to v3.4 now. So hopefully all is well.

Now after uploading files :

Error: M997 S0 Firmware binary "0:/firmware/Duet3CombinedFirmware.bin" not found.

Even after uploading this file?

@brian However, i now have this error: Phaedrux MODERATOR 18 Apr 2022, 21:30
It looks like the main firmware is at 3.3 and the wifi module isn't started, and perhaps needs the wifi firmware reflashed as well.

Try sending
M552 S-1
M552 S0
M552 S1

and see what it says each time.

Then try sending M997 S1 to reflash the wifi module and see what it says.

@phaedrux Worked like a charm. Thank you very much. Wonder why isnt this in the documentation?

To clarify, the power went out a minute or so after starting.

@phaedrux
The file system showed no files when lights went out. M122;
m122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.3 (2021-06-15 21:44:54) running on Duet WiFi 1.02 or later
Board ID: 0JD0M-9P6B2-NJ4S8-6JKF6-3S86R-1A7GL
Used output buffers: 1 of 24 (12 max)
=== RTOS ===
Static ram: 23876
Dynamic ram: 75032 of which 188 recycled
Never used RAM 15320, free system stack 185 words
Tasks: NETWORK(ready,8.0%,521) HEAT(suspended,0.0%,330) MAIN(running,92.0%,305) IDLE(ready,0.0%,29), total 100.0%
Owned mutexes: USB(MAIN)
=== Platform ===
Last reset 00:29:54 ago, cause: power up
Last software reset at 2022-04-18 08:38, reason: User, GCodes spinning, available RAM 15496, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
Step timer max interval 0
MCU temperature: min 31.2, current 31.3, max 31.8
Supply voltage: min 0.5, current 0.5, max 0.6, under voltage events: 0, over voltage events: 0, power good: no
Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
Driver 0: position 0, ok, SG min/max not available
Driver 1: position 0, ok, SG min/max not available
Driver 2: position 0, ok, SG min/max not available
Driver 3: position 0, ok, SG min/max not available
Driver 4: position 0, ok, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 1970-01-01 00:00:00
Cache data hit count 4294967295
Slowest loop: 101.05ms; 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 3.2ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, 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 ready with "m122" 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.
=== Network ===
Slowest loop: 1.02ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 0 of 8

• WiFi -
  Network state is starting2
  WiFi module is disabled
  Failed messages: pending 0, notready 12, noresp 0
  Socket states: 0 0 0 0 0 0 0 0
  ok