I thought I'd follow-up on this post as I hate when people leave the thread hanging. I received my new (genuine) ethernet module from the US - I have plugged it in and everything is working as it should be. This is a timely lesson to me as I was getting lazy in turning off my duet when switching out hardware (fans in this case). I think I got off extremely lightly!
Thanks again for the help.

@Phaedrux My apologies for sounding impatient. You guys are always so professional and patient. I watched replies happen all around my post and thought that maybe it wasn't worth a look in from you guys (mistakenly so).
I have a new duex 5 and is is being recognised by the diagnostics. Success.
I am having trouble getting my extruder steppers to work but I will start a new topic as this one is solved!

Ok so I've come in fresh this morning and realised that the extruder is working. I had the feed rate so low that I couldn't hear or see it moving.
Still showing 0Ma in the machine properties though. Strange, but not the end of the world.
I am going to attempt a print today hopefully.
Will let you know how it goes.

@Phaedrux See below:

8:36:25 AMM913
Motor current % of normal - X:100, Y:100, Z:100, E100
8:35:39 AMM906
Motor current (mA) - X:1600, Y:1600, Z:1600, E:1600:1600, idle factor 30%
8:35:04 AMConnection established!
8:34:55 AMDisconnected.
8:30:51 AMM122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.0 running on Duet Ethernet 1.02 or later + DueX5
Board ID: 08DGM-917NK-F2MSW-6JKFA-3SD6R-1H5DF
Used output buffers: 3 of 24 (14 max)
=== RTOS ===
Static ram: 28180
Dynamic ram: 93964 of which 20 recycled
Exception stack ram used: 256
Never used ram: 8652
Tasks: NETWORK(ready,836) HEAT(blocked,1224) DUEX(suspended,160) MAIN(running,1912) IDLE(ready,80)
Owned mutexes:
=== Platform ===
Last reset 00:06:33 ago, cause: watchdog
Last software reset at 2106-02-07 06:28, reason: deliberate Unknown, spinning module unknown, available RAM 4294967295 bytes (slot 3)
Software reset code 0xffff HFSR 0xffffffff CFSR 0xffffffff ICSR 0xffffffff BFAR 0xffffffff SP 0xffffffff Task ����
Error status: 0
MCU temperature: min 23.7, current 32.9, max 33.0
Supply voltage: min 0.0, current 12.1, max 12.1, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Driver 5: standstill, SG min/max not available
Driver 6: standstill, SG min/max not available
Driver 7: standstill, SG min/max not available
Driver 8: standstill, SG min/max not available
Driver 9: standstill, SG min/max not available
Date/time: 2020-07-28 08:30:50
Cache data hit count 883562925
Slowest loop: 5.21ms; fastest: 0.09ms
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 6.8ms, write time 0.0ms, max retries 0
=== Move ===
Hiccups: 0(0), FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 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
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 6.88ms; fastest: 0.01ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8
Interface state active, link 100Mbps full duplex
=== DueX ===
Read count 1, 0.15 reads/min
8:29:52 AMConnection established!
8:29:52 AMPage Load complete!

Sorry, not sure if the config g above is viewable. Her is a cut and paste:

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon May 11 2020 12:21:41 GMT+1000 (Australian Eastern Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Vandal" ; set printer name

; Network
M552 S1 P0.0.0.0 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P1 S1 ; physical drive 1 goes forwards X
M569 P2 S0 ; physical drive 2 goes backwards Y
M569 P0 S1 ; physical drive 0 goes forwards Z1
M569 P3 S1 ; physical drive 3 goes forwards Z2
M569 P4 S1 ; physical drive 4 goes forwards Z3
M569 P5 S1 ; physical drive 5 goes forwards E0
M569 P6 S1 ; physical drive 6 goes forwards E1

M584 X1 Y2 Z0:3:4 E5:6 ; set drive mapping
M350 X16 Y16 Z16:16:16 E16:16 I1 ; configure microstepping with interpolation
M92 X80.00 Y40.00 Z1216.00:1216.00:1216.00 E420.00:420.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00:12.00:12.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00:180.00:180.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00:20.00:20.00 E250.00:250.00 ; set accelerations (mm/s^2)
M906 X1600 Y1600 Z1600:1600:1600 E1600:1600 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 X600 Y430 Z700 S0 ; set axis maxima
M671 X300:4:595 Y-150:540:540 S20 ; leadscrews at rear left, front middle and rear right

; Endstops
M574 X1 S1 P"nil" ; Make x endstop available
M574 Y1 S1 P"nil" ; Make y endstop available
M574 Z1 S1 P"nil" ; Make z endstop available
M574 X1 S1 P"!ystop" ; configure active-low endstop for low end on X via pin ystop
M574 Y1 S1 P"!zstop" ; configure active-low endstop for low end on Y via pin zstop

; Z-Probe
M558 P9 C"^zprobe.in" H10 F120 T5000 ; set Z probe type to unmodulated and the dive height + speeds
M950 S0 C"duex.pwm4" ; configure servo pin0 for 3D Touch
G31 P500 X0 Y25 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X50:600 Y20:360 S80 ; define mesh grid

; Tool changing Servo
M950 S3 C"duex.pwm2" ; configure servo pin3 for rocker

; 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
M143 H0 S120 ; set temperature limit for heater 0 to 120C
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
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; 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
M143 H1 S280 ; set temperature limit for heater 1 to 280C
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M308 S2 P"e1temp" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin e1temp
M950 H2 C"e1heat" T2 ; create nozzle heater output on e1heat and map it to sensor 2
M143 H2 S280 ; set temperature limit for heater 2 to 280C
M307 H2 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

; 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 H-1 ; set fan 1 value. Thermostatic control is turned off

; Tools
M563 P0 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
M563 P1 D1 H2 F0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined

I cant seem to get my E0 and E1 steppers to move. I believe I have configured the firmware correctly.
When I go to my machine settings on the DWC it shows that the extruders are configured to 0Ma. This is despite the drive mapping in
M584 and setting the current in M906.
Diagnostics tell me that the duex 5 is recognised ( the duex 5 has just been replaced as it was previousley not being recognised by the duet 2).
Could anyone please check over my config g. and see if I'm missing something?
I am running a Duet 2 Ethernet with a Duex 5.
This is my Config G:

config (3).g

Here is a picture of settings in question:

Cheers!

@Phaedrux My apologies for sounding impatient. You guys are always so professional and patient. I watched replies happen all around my post and thought that maybe it wasn't worth a look in from you guys (mistakenly so).
I have a new duex 5 and is is being recognised by the diagnostics. Success.
I am having trouble getting my extruder steppers to work but I will start a new topic as this one is solved!

WOW!! Not one single comment. Is this not being seen or has it been put in the 'too hard' basket?
If anyone see's this thread I would like to add that I could only get the servos to work on the duex by dropping the "!" in M950 S0 C"duex.pwm4" for the bl touch and M950 S3 C"duex.pwm2" for the tool changing servo. ANY help would be much appreciated!

Sorry, this is the photo I should have attached

Hi there,
The 2x steppers (extruders) patched into my duex5 are not responding at all. I also have a BL touch + 1 extra servo plugged into the duex which are working perfectly. I have read that a M115 diagnostic should be showing the duex5 but is not. On reading other threads I have followed the advise given and checked that the wiring is all snug and correct. I have also checked the ribbon cable and all appears well with this. The steppers were working previously even though the duex5 was not showing up on the diagnostics so I though if it wasn't broke then don't try to fix it.
Diagnostics as follows:

3:12:48 PMM122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.0 running on Duet Ethernet 1.02 or later
Board ID: 08DGM-917NK-F2MSW-6JKFA-3SD6R-1H5DF
Used output buffers: 1 of 24 (14 max)
=== RTOS ===
Static ram: 28180
Dynamic ram: 93456 of which 20 recycled
Exception stack ram used: 272
Never used ram: 9144
Tasks: NETWORK(ready,836) HEAT(blocked,1224) MAIN(running,1912) IDLE(ready,80)
Owned mutexes:
=== Platform ===
Last reset 00:45:55 ago, cause: power up
Last software reset at 2106-02-07 06:28, reason: deliberate Unknown, spinning module unknown, available RAM 4294967295 bytes (slot 1)
Software reset code 0xffff HFSR 0xffffffff CFSR 0xffffffff ICSR 0xffffffff BFAR 0xffffffff SP 0xffffffff Task ����
Error status: 0
MCU temperature: min 33.5, current 34.7, max 35.2
Supply voltage: min 12.0, current 12.1, max 12.1, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2020-07-08 15:12:46
Cache data hit count 4294967295
Slowest loop: 7.26ms; fastest: 0.12ms
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 ===
Hiccups: 0(0), FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 1 is on, I-accum = 0.0
=== 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
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 5.36ms; fastest: 0.06ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8
Interface state active, link 100Mbps full duplex

Config G as follows:

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon May 11 2020 12:21:41 GMT+1000 (Australian Eastern Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Vandal" ; set printer name

; Network
M552 S1 P0.0.0.0 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P1 S1 ; physical drive 1 goes forwards X
M569 P2 S0 ; physical drive 2 goes backwards Y
M569 P0 S1 ; physical drive 0 goes forwards Z1
M569 P3 S1 ; physical drive 3 goes forwards Z2
M569 P4 S1 ; physical drive 4 goes forwards Z3
M569 P5 S1 ; physical drive 5 goes forwards E0
M569 P6 S1 ; physical drive 6 goes forwards E1

M584 X1 Y2 Z0:3:4 E5:6 ; set drive mapping
M350 X16 Y16 Z16:16:16 E16:16 I1 ; configure microstepping with interpolation
M92 X80.00 Y40.00 Z1216.00:1216.00:1216.00 E420.00:420.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00:12.00:12.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00:180.00:180.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00:20.00:20.00 E250.00:250.00 ; set accelerations (mm/s^2)
M906 X1600 Y1600 Z1600:1600:1600 E1600:1600 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 X600 Y430 Z700 S0 ; set axis maxima
M671 X300:4:595 Y-150:540:540 S20 ; leadscrews at rear left, front middle and rear right

; Endstops
M574 X1 S1 P"nil" ; Make x endstop available
M574 Y1 S1 P"nil" ; Make y endstop available
M574 Z1 S1 P"nil" ; Make z endstop available
M574 X1 S1 P"!ystop" ; configure active-low endstop for low end on X via pin ystop
M574 Y1 S1 P"!zstop" ; configure active-low endstop for low end on Y via pin zstop

; Z-Probe
M558 P9 C"^zprobe.in" H10 F120 T5000 ; set Z probe type to unmodulated and the dive height + speeds
M950 S0 C"duex.pwm4" ; configure servo pin0 for 3D Touch
G31 P500 X0 Y25 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X50:600 Y20:360 S80 ; define mesh grid

; Tool changing Servo
M950 S3 C"duex.pwm2" ; configure servo pin3 for rocker

; 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
M143 H0 S120 ; set temperature limit for heater 0 to 120C
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
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; 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
M143 H1 S280 ; set temperature limit for heater 1 to 280C
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M308 S2 P"e1temp" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin e1temp
M950 H2 C"e1heat" T2 ; create nozzle heater output on e1heat and map it to sensor 2
M143 H2 S280 ; set temperature limit for heater 2 to 280C
M307 H2 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

; 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 H-1 ; set fan 1 value. Thermostatic control is turned off

; Tools
M563 P0 S"Hotend 0" 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
M563 P1 S"Hotend 1" D1 H2 F0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined

And here is a photo of the wiring:

I look forward to your reply.

Damien

I thought I'd follow-up on this post as I hate when people leave the thread hanging. I received my new (genuine) ethernet module from the US - I have plugged it in and everything is working as it should be. This is a timely lesson to me as I was getting lazy in turning off my duet when switching out hardware (fans in this case). I think I got off extremely lightly!
Thanks again for the help.

@bearer Copy that! I will run some tests tomorrow and report back. Thanks heaps for your help and thank you @dc42. I really appreciate your time. I'm in Sydney and I believe that I bought the last duet 2 stock in Australia. Lets hope I can get a new ethernet module here.
Cheers lads! You rock!