Mark T.B. Carroll wrote:
> I'm slightly baffled by the Intel-provided ipw3945d regulatory daemon I
> have running for my Intel 3945ABG wireless card under Linux. My laptop
> is American and I found I couldn't connect to a Japanese 802.11a
> network.
>
> As far as I can tell it's actually limiting which channels the card will
> talk on at all. For instance, in the 5.2GHz band, it will listen on
> channels 36, 40, 44, 48, etc. but not 34, 38, 42, 44 or whatever.
>
> What I want to confirm is, I can understand wifi NIC vendors wanting to
> restrict what frequencies it will broadcast on, because of FCC
> requirements, but do they normally even restrict on what frequencies the
> card will respond to an access point's beacon on? It won't even listen
> and broadcast even if the surrounding access points are obviously
> operating in a different regulatory environment?
>
> It just seems so silly when people obviously travel with their laptops
> and whatnot. What do 'b/g' people do when travelling to Israel with a
> Spanish laptop? What do 'a' people do when travelling to Japan with an
> American laptop? Buy a NIC in each country? (Is the regulatory daemon
> responding to some region code embedded in the NIC? It says something
> about 'detected geography' but I very much doubt it can tell where my
> laptop computer actually is.)
>
> -- Mark
Have you checked the "Country Region" in your wireless card properties?
You should be able to specify which region you want the card to work in.
I don't have that specific wireless card but having just checked a
couple of laptops with wifi I am able to specify a region I wish to use.