I have had this problem before but thought I had resolved it.  Several years
ago I was visiting a cousin and I could not get eCS to run more than a few
minutes before the system locked up, the only thing that would work is the
power off button.  My cousin had his network secured with WPA.  When I got home
I updated GENMAC and XWLAN, the next time I was at my cousin's everything
worked.

Again I am having the system lock up.  Sometimes it will not even completely
boot but sometimes will run about 5 minutes before it locks up.  Using windows
I can see several open SSIDs for the motel, two secured SSIDs, one WPA and the
other I assume is WEP.  I would like to connect to an open SSID.  When I try to
open the "Wireless LAN Monitor" I see a square where the window will open but
the system locks up before the window is painted.  So I used "Adapters and
Protocols" to configure GENMAC out.  I can now connect to the internet using
the wired NIC and a Linksys with DD-WRT (THANK YOU Lewis, this is not what I
bought this for but it works) to connect to the internet.

What I think would work is if I could open the "Wireless LAN Monitor" and
configure a profile to connect to the open SSID it would work.  What I think is
happening is that it is trying to connect to anything and whatever it is trying
is not to its liking and hanging the system.

Is there a way to prevent the connection until I manually indicate what and
when to connect to?

GENMAC v2..2 and XWLAN v3.10 setup as a standalone program not a widget.