Question on deauth, reason 4, for hostapd.

[Ben Greear]

On 01/13/2011 11:47 AM, Ben Greear wrote:
> I'm trying to figure out why my stations sometimes deauth for
> reason 4 (which I understand to mean 'inactivity').
>
> I instrumented the hostapd logs a bit, and I see this the output
> below. Basically, there appears to be no inactivity problems, and
> as far as I can tell, hostapd isn't forcing the deauth, but is rather
> dealing with it from somewhere else.

Ahh, seems the client side is giving up.

sta6: detected beacon loss from AP - sending probe request
sta7: detected beacon loss from AP - sending probe request
sta8: detected beacon loss from AP - sending probe request
ieee80211 wiphy0: sta10: No ack for nullfunc frame to AP 00:99:99:99:99:01, try 1
net_ratelimit: 200 callbacks suppressed
wlan0: detected beacon loss from AP - sending probe request
sta0: detected beacon loss from AP - sending probe request
sta1: detected beacon loss from AP - sending probe request
sta2: detected beacon loss from AP - sending probe request
sta3: detected beacon loss from AP - sending probe request
sta4: detected beacon loss from AP - sending probe request
sta5: detected beacon loss from AP - sending probe request
sta6: detected beacon loss from AP - sending probe request
sta7: detected beacon loss from AP - sending probe request
sta8: detected beacon loss from AP - sending probe request
ieee80211 wiphy0: sta10: Failed to send nullfunc to AP 00:99:99:99:99:01 after 500ms, disconnecting.
ieee80211 wiphy0: Removed STA 00:99:99:99:99:01
ieee80211 wiphy0: Destroyed STA 00:99:99:99:99:01
start_sw_scan: running-other-vifs: 0  running-station-vifs: 70, associated-stations: 69 scanning current channel: 2437 MHz
sta10: authenticate with 00:99:99:99:99:01 (try 1)
sta10: authenticated
sta10: associate with 00:99:99:99:99:01 (try 1)
sta10: RX ReassocResp from 00:99:99:99:99:01 (capab=0x411 status=0 aid=60)
sta10: associated
ieee80211 wiphy0: Allocated STA 00:99:99:99:99:01
ieee80211 wiphy0: Inserted STA 00:99:99:99:99:01
net_ratelimit: 76 callbacks suppressed
wlan0: detected beacon loss from AP - sending probe request
sta0: detected beacon loss from AP - sending probe request

Thanks,
Ben

-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com