Unable to use wifi on nintendo DS

[gwenhael.goavec]

Hi,
I'm newbie on RTEMS.
I wish to test the wifi connection on my nintendo DS with
RTEMS 4.9.1.

I have tested the example shown in
http://www.rtems.com/ftp/pub/rtems/current_contrib/nds-bsp/manual.html
but after "initialize network" I can reading "Could not
connect!"
My AP is open without WEP or WPA.
What is the correct configuration for to be able to use
wifi connection?
Thank you very much 
Gwenhaël