zd1211 stability issue on 2.6.25

[matthieu castet]

Hi,

I am using a zd1211 dongle [1] on 2.6.25 in wpa mode. Sometimes I got 
disconnection [2]. But after that scanning seems to doesn't work anymore 
[3].
This cause wpa_supplicant to do an endless lop try to find the AP in the 
scan result and there no reconnection.
Only a ifconfig wlan0 down, ifconfig wlan0 up make work again scanning.

This make the dongle not usable.

Matthieu



[1]
phy0: Selected rate control algorithm 'pid'
firmware version 4725
zd1211rw 1-5:1.0: zd1211b chip 079b:0062 v4810 high 00-60-b3 AL2230_RF 
pa0 g----

[2]
 wlan0: No ProbeResp from current AP 00:07:cb:50:0d:e6 - assume out of 
range

[3]
$sudo iwlist wlan0 scan
wlan0     Interface doesn't support scanning : Network is down
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