> When the problem occurs, wireshark on the wlan (laptop) side shows ARP 
> requests that are not responded to.
> When the problem occurs, wireshark on the LAN (wired) side does not show 
> those ARP requests.

As you can see in the log, the WEP key is getting disabled. printk
timestamps would help to identify what really happens.

> b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac:
> ff:ff:ff:ff:ff:ff

Here you set the key first

> wlan0: associated
> wlan0: switched to short barker preamble (BSSID=00:16:01:b9:f9:3f)

and associated

> wlan0: authenticate with AP 00:16:01:b9:f9:3f
> b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac:
> ff:ff:ff:ff:ff:ff
> b43-phy0 debug: Disabling hardware based encryption for keyidx: 0,
> mac: ff:ff:ff:ff:ff:ff

Somehow you're deauthenticated, maybe manually? The strange thing is the
order here, why is it adding the key again, and then deleting it? Can
you please try the patch

        [PATCH v2] mac80211: fix key hwaccel race

johannes

johannes

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