[ath5k-devel] ath5k with hostapd, low beacon rate then no beacons at all (missing/lost/beacons)

John McLean jdmclean at shaw.ca
Mon Nov 29 20:04:45 EST 2010



----- Original Message -----
From: John McLean <jdmclean at shaw.ca>
Date: Monday, November 29, 2010 9:18 am
Subject: [ath5k-devel] ath5k with hostapd, low beacon rate then no beacons at all (missing/lost/beacons)
To: ath5k-devel at lists.ath5k.org, hostap at lists.shmoo.com

> Just wondering if anyone else has seen this behaviour. 
> 
> Running hostapd with no clients, or with just one client connected.
> 
> Seeing
>  beacon rate from 2/second up to 1 every 15 seconds, and 
> anything in 
> between. (beacon rate being completely intermittent) Then the 
> beacons 
> will go away completely for minutes at a time, (I've recorded as 
> long as
>  seven minutes) then they re-appear at this random rate. 
> (with no input from any outside source that I can see)
> 
> Using:
> 
> kernel: 2.6.32
> ath5k.ko 0.6.0
> compat-wireless-2.6.32.16
> hostapd 0.7.2
> 
> Monitoring with wireshark running on windows xp with an AirPcap 
> Nx usb adaptor. 
> 
> My hostapd config is:
> 
> ctrl_interface=/var/run/hostapd
> ctrl_interface_group=0
> interface=wlan0
> bridge=br0
> driver=nl80211
> ssid=H040109D0311
> auth_algs=3
> channel=6
> hw_mode=g
> ieee8021x=0
> wmm_enabled=0
> wpa=2
> wpa_key_mgmt=WPA-PSK
> wpa_pairwise=CCMP
> wpa_group_rekey=300
> wpa_gmk_rekey=86400
> wpa_passphrase=newworld
> 
> I can provide any additional info, pcap traces, etc.
> 
> Thx for any input!
> 
> Cheers, John
>

Problem solved, all my finger trouble. With WireShark I was monitoring on ch11 when my AP was using ch6. Channel bleed. Ch11 was picking up a few of the beacons but not all. With WireShark monitoring on ch6 all is as expected.

Cheers, J.

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