@infiniteloop @jay_s_uk It works perfectly now !!!!
I have some other issues but it's with the machine haha
Thank you a lot @jay_s_uk for your help and your patience. I've learned a lot through this long slog 
Hope this will help some people as well.
Thank you all !
@jay_s_uk It working ! I can access now to the duet web controller ! a huge thanks for that !
I have another question, The duet is pinned to my router.
But the board will be back to the workshop and there is no wifi there. I remember, the guy from Ooznest set my duet to send it own wifi.
I've plugged out the router and I can't connect the duet.
How Could I achieve this ?
@jay_s_uk sorry I understood now. I will !
@jay_s_uk I've seen it before to have all those issues.
I will sound probably stupid but it's not on GitHub. Where can I get the config.g ?
@jay_s_uk yes I'm just sending M552 S1 on YAT.
what do you mean by the config ? config.g ?
@jay_s_uk I've done it and still the same problem.
I've send a M122 command and the SD card is not detected...
@jay_s_uk router is in wireless but I've realized that I did a mistake in the IP router. so I've done it again. The module is connected to access point to the IP address: 192.168.0.10 and my IPv4 address of my router is 192.168.0.14.
On the PC, nothing changed but on my Mac I've got this.
here is my sd card
@phaedrux Yes I have this app but don't know why, but never been a success when I've tried to connect the duet to the router 
@jay_s_uk I found a PC and I've download YAT and it works !!!!!!
I mean Almost !!!!!
the blue wifi led is now ON !
the duet is connected but When I tried to be on the IP address, I can't access to the duet platform. I've got this message ERR_CONNECTION_REFUSED
also I can't see the duet on the wifi network list
@jay_s_uk I've followed your advice and I've formatted the SD Card from Formatter software and it worked perfectly.
But Now I've another issue....
I can't connect the duet to the wifi to set it up.
the link that I've followed :
https://docs.duet3d.com/How_to_guides/Getting_connected/Getting_connected_to_your_Duet
And this is what I've done
I can't or maybe I don't understand how to Configure network SSID and password.
What I've missed ?
@jay_s_uk weird, the SD card seems not detected ...
I can say that when it's fully inserted, I can hear a faint click and when I push again, it release the SD card.
and all pins seems okay to me
@jay_s_uk on the picture, I've done as well the command M997 S1. the file is not found easer. And it's been placed in the good subflle at the beginning with the correct name
@jay_s_uk I have also change the name of the sd card "0" after to receive the message from pronterface. Before the SD card named "WORKBEE"
@droftarts @jay_s_uk it works ! the duet 2 is back ! Big thanks for that !
I can talk with the board through Pronterface ! But I still have some issues ...
So I have sent an M115 and the firmware 3.4.1 seems to be in the duet.
So I have followed the back procedure number 1.
I have sent a M997 S0 and M997 S1 and the app can't find the file on the SD card ...
I have tried different types of name of subfile ( all the bin files are in each subfolder ) but the app can't find any bin file ...
What have I done wrong again ?
Thank you
Jeff
@droftarts and @jay_s_uk
I have followed the fallback procedure #2.
I'm on Mac, so I've downloaded and run Pronterface but still, it can see the 'usbmodem1201' but can't go further than "connecting...". I can't have any access.
So I've continued and install Bossa but it's crashing instantly.
I've done some research and I needed to install home-brew to make it work.
That what I've done, I've install wget and wxwidgets and it's still not working ... Maybe because I've have an M1 computer .
Let me know what I've done wrong ...
Thank you for your help, I really appreciate
Jeff
@droftarts Thank you for your reply and sorry for this late reply.
I've formatted my SD card again and I have put back the "Duet2CombinedFirmware.bin" file on the sd card and put back the sd card on the board.
But As I said, I can't do anything because I can't have a dialog with the board through Serial Tool and the terminal says that the permission is denied (same thing that the first picture from my first post).
Also I still have the DIAG led on.
Maybe I've done something wrong, I don't know from where I should start...
Thank you
Jeff
