@Phaedrux
I downloaded files into DWC. It asks to install. I click yes, it starts to install then loses connection. My Wi-Fi antenna is only about 8' away if that matters.
Is there a way to connect Ethernet cable to Duet2 Wi-fi board to eliminate that Wi-Fi signal as issue? Can I use laptop and USB cable to update firmware?

@Phaedrux I installed new reformatted SD card. still loses connection. on some files it does it immediately on other 15 -20 minutes into print.

8/8/2023, 4:15:25 PM 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-NJ4S4-6JKFA-3SD6L-KV1AL
Used output buffers: 3 of 24 (20 max)
=== RTOS ===
Static ram: 23876
Dynamic ram: 75704 of which 20 recycled
Never used RAM 14816, free system stack 176 words
Tasks: NETWORK(ready,13.9%,244) HEAT(delaying,0.1%,330) Move(notifyWait,0.1%,364) MAIN(running,85.9%,433) IDLE(ready,0.1%,29), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:18:09 ago, cause: power up
Last software reset at 2023-08-01 15:28, reason: TerminateCalled, GCodes spinning, available RAM 14640, slot 1
Software reset code 0x4183 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x20002078 Task MAIN Freestk 591 ok
Stack: 0000002b 0045c607 00000000 20018540 20002430 0045ca37 00000000 0045c389 200020c8 0043d923 20002118 00000000 20018540 00000000 20002314 00000001 00000000 00461e7f 20002118 00000000 20018540 00461e7f 0047ae94 20018540 0043d921 20002314 ffffffff
Error status: 0x00
Aux0 errors 0,0,0
Step timer max interval 0
MCU temperature: min 40.9, current 41.3, max 45.2
Supply voltage: min 23.9, current 24.1, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
Driver 0: position 0, standstill, SG min/max not available
Driver 1: position 0, standstill, SG min/max not available
Driver 2: position 0, standstill, SG min/max not available
Driver 3: position 0, standstill, SG min/max not available
Driver 4: position 0, standstill, 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: 2023-08-08 16:15:23
Cache data hit count 4294967295
Slowest loop: 8.48ms; fastest: 0.17ms
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 3.0ms, 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 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.
=== Network ===
Slowest loop: 15.43ms; 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 24:a1:60:2e:ac:cf
  WiFi Vcc 3.44, reset reason Turned on by main processor
  WiFi flash size 4194304, free heap 26984
  WiFi IP address 192.168.1.116
  WiFi signal strength -47dBm, mode 802.11n, reconnections 0, sleep mode modem
  Clock register 00002002
  Socket states: 0 0 0 0 0 0 0 0
  8/8/2023, 3:57:22 PM Connection established
  8/8/2023, 3:57:21 PM Connection interrupted, attempting to reconnect...
  HTTP request timed out

@Phaedrux I don't have a spare SD card. Do you recommend a particular brand, size and / or quality SD card to buy?

I am getting a "Connection interrupted, attempting to reconnect...
HTTP request timed out" on some files I try to print. current file that is giving me issue is 704.6 kb
Ran file from same software 14.3 mb file loads and prints great still does but try to load new file and times out.
I have power cycled and re boot everything .
regenerated and loaded file. What else can I try?

Files are generated by Simplify3D vers. 4.1.2 also tried 5.1.1

I am running ;
Board: Duet 2 WiFi (2WiFi)
Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.3 (2021-06-15)
Duet WiFi Server Version: 1.26,
Duet Web Control 3.3.0