[Madwifi-users] Strange phenomenon

[Michael R. <ma...@no...>]

Hi all.

Today I noted a strange behaviour of a client using a a/b/g MiniPCI card 
(5212). I'm using madwifi CVS as of 2004/04/15, Kernel 2.4.26, the host 
is an x86-System running a Natsemi Geode SC1100 cpu. The AP during my 
tests is a Lancom Systems L-54ag, also working with Atheros 5212. The 
card works with countrycode = 0x114 (Germany) and outdoor=1.

When the card looses the AP (for example because I turned off the power 
for a minute) while being on a 2.4 GHz channel, it will start to scan 
2.4 and 5 GHz channels for the AP without finding it even after the AP 
is back again.

The following actions cause the card to see the AP again:

1. issuing "ifconfig ath0 down up"
2. switching the AP over to one of the 5 GHz channels, no matter which one

When the card looses the AP while working on 5 GHz, it will find the AP 
after it comes back online. No matter, if the AP then works on 2.4 GHz 
or on 5 GHz.

This behaviour is fully reproducable for me. I'm wondering if anyone 
else will see this in his own setup. If more information on the settings 
are needed, please let me know.

Is this a known problem?

Bye, Mike