@GaRv3 I got the same Problem but here is my option to deal with it part time 
Hooked up my old D-Link Wifi router between the Vodafon router and my PC. It slows down my connection a bit, but the Duet is connecting without any problems to the D-Link instead of the Vodafon Router.
Works fine for me at the Moment
Hooked up my old D-Link Wifi router between the Vodafon router and my PC. It slows down my connection a bit, but the Duet is connecting without any problems to the D-Link instead of the Vodafon Router.
SSID is broadcasted
The Router know the MAC of the Duet
The Duet is remembering the SSID (and Password)
Executing config.g...Error: M587: Failed to add SSID to remembered list
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
M552 S-1
WiFi module stopped
ok
M552 S0
ok
WiFi module started
M587
Remembered networks:
DWTN IP=0.0.0.0 GW=0.0.0.0 NM=0.0.0.0
ok
No, just a standard Key like "A1234567b" (was my testing Key)
As the titled say: i got a connection problem with my Duet Wifi. A friend and i configured the Board and linked it up to his home w-lan without any problem. We do all the necessary things to get the printer started and it worked.
When i get home, i just entering the commands as shown:
M552 S-1
M552
M552 S0
M552
M587 S“My SSID“ P“ My Password“
M587
M552 S1
After that i get connection error (see protocol below). Several attempts later I changed the SSID and passwords but nothing worked.
So I decided to set up a WiFi HotSpot with my Galaxy S7 and zoom … the Duet connected to the Smartphone after 3 Secs.
So I tried to connected back to my home Wifi and get the typical message: error
I retry the Smartphone which was working fine and then decided to try a connection to my neighbors WiFi and again: zooom connection after 3 secs (ask for his Password and SSID)
I went further and enabled MAC in my Router Option … nothing … the only way for connecting was to disable the WPA / WPA2 protocol in my router and surprise: we get a stable connection after 3 secs …
Hopefully someone has a idea to fix this, I use a Vodafone Router with the newest firmware. Other devices as our smartphones, the normal HP printer and Smart- TV / TV- Stick work still fine with the router settings.
YAT Protocol
M552 S-1
WiFi module stopped
ok
M552 S-1
ok
M552 S0
ok
WiFi module started
M552 S1
ok
WiFi reported error: Timed out while trying to connect to DWTN
WiFi module is idle
WiFi reported error: no known networks found
WiFi module is idle
M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.05.1 running on Duet WiFi 1.02 or later
Board ID: 08DJM-9178L-L2MSD-6JKD0-3S46Q-TTFGP
Used output buffers: 2 of 24 (3 max)
=== RTOS ===
Static ram: 25712
Dynamic ram: 93176 of which 0 recycled
Exception stack ram used: 304
Never used ram: 11880
Tasks: NETWORK(ready,1280) HEAT(blocked,1232) MAIN(running,3824) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 01:35:48 ago, cause: power up
Last software reset time unknown, reason: User, spinning module GCodes, available RAM 11872 bytes (slot 3)
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 24.0, current 26.2, max 27.0
Supply voltage: min 0.1, current 0.5, max 0.7, 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 4294967295
Slowest loop: 99.79ms; 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: mesh, 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: 15.34ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 0 of 8