>> I have a problem with Intel Wireless 2200BG. While trying to  
>> connect to
>> AirPort Extreme in PowerMac, I always get "unknown authentication  
>> state
>> 4" or "unknown authentication state 1", as long as the interface  
>> is up.
>> Exactly the same configuration works perfectly well with AirPort card
>> (not Extreme) in PowerBook.
>
> State 4 corresponds to a failure in the initial auth handshake.
> Typically this is cauesd by a mismatch of the auth algorithm and  
> the iwi
> driver improperly implementing shared-key authentication.

How can this be fixed?

I have also noticed, there's a new version of iwi firmware (ipw2200- 
fw-3.0), but it can't be loaded via iwictl.

Kind regards,
Adam