BGan and Airport Express

Hello all--

Hope someone can help me. I'm a reporter in baghdad and hoping to use
my Inmarsat BGan sat modem with my Airport Express. When I connect the
modem directly to my PowerBook. It works fine. The network is acquired
and I get an IP address. But then, if I take the cable and run it to
the Airport Express, the AE just flashes amber and it never goes green.

However, if I then reset the BGan, the airport glows green, indicating
it's got an IP, but the BGan never acquires the network and can't be
used. I'm totally stumped as to what to do. Does anyone know how this
can be done?

Thanks,
--
Christopher Allbritton

Freelance Reporter
Baghdad, Iraq