My problem :
NDS and PC are both in the same LAN.
As soon as windows sends out a ARP-request (win does this on a regular basis with all dynamic ARP-table entries) the NDS stops receiving (or sending ?! can't remember right now) all messages.
This bug has been in the WiFi-Lib since the beginning.
I worked around that bug, by giving my NDS a static ARP-enty.
Maybe the CVS-team could try to find that bug and eliminate it
?