On Thu, 16 Dec 2010, Mubeesh ali wrote:

Hi Justin,

I see 7 beacon misses on the interface which is not good the client
disconnects on beacon miss...typically most ap's are configured to
send a beacon every 100 ms .  ..this looks similar
http://madwifi-project.org/ticket/1957


thanks,
Mubeesh
On Thu, Dec 16, 2010 at 11:16 PM, Justin V. <v...@yeaguy.com> wrote:


On Thu, 16 Dec 2010, Mubeesh ali wrote:

can u completely not send any traffic or is this a random drop. If
random there could be interference causing replay counter mismatch.
This may force AP to drop the packet,  the ap may de authenticate
client if it sees continuous stream of such packets in a short
interval and force client to drop existing sessions like ftp.

Please try changing the channel. If the client and AP are both A
capable please try using the A band as there are more non overlapping
channels and u may be able to find a channel with low interference.



On Thu, Dec 16, 2010 at 10:46 PM, Justin V. <v...@yeaguy.com> wrote:

I keep seeing my wlan0 interface go down..  I suspected a faulty wifi
router.. i changed that out..

Ive tried using WEP and WPA.  Currently using WPA.

Here are the logs Im seeing..

Dec 16 07:47:57 yeaguy wpa_supplicant[9492]: CTRL-EVENT-DISCONNECTED -
Disconnect event - remove keys
Dec 16 07:47:57 yeaguy kernel: wlan0: link state changed to DOWN
Dec 16 07:47:57 yeaguy wpa_supplicant[9492]: CTRL-EVENT-SCAN-RESULTS
Dec 16 07:47:57 yeaguy wpa_supplicant[9492]: Trying to associate with
00:22:6b:66:bf:74 (SSID='vicnet' freq=2462 MHz)
Dec 16 07:48:07 yeaguy wpa_supplicant[9492]: Authentication with
00:22:6b:66:bf:74 timed out.
Dec 16 07:48:07 yeaguy wpa_supplicant[9492]: CTRL-EVENT-SCAN-RESULTS
Dec 16 07:48:07 yeaguy wpa_supplicant[9492]: Trying to associate with
00:22:6b:66:bf:74 (SSID='vicnet' freq=2462 MHz)
Dec 16 07:48:18 yeaguy wpa_supplicant[9492]: Authentication with
00:22:6b:66:bf:74 timed out.
Dec 16 07:48:20 yeaguy wpa_supplicant[9492]: CTRL-EVENT-SCAN-RESULTS
Dec 16 07:48:20 yeaguy wpa_supplicant[9492]: Trying to associate with
00:22:6b:66:bf:74 (SSID='vicnet' freq=2462 MHz)
Dec 16 07:48:20 yeaguy wpa_supplicant[9492]: WPA: EAPOL-Key Replay
Counter
did not increase - dropping packet
Dec 16 07:48:20 yeaguy wpa_supplicant[9492]: Associated with
00:22:6b:66:bf:74
Dec 16 07:48:20 yeaguy kernel: wlan0: link state changed to UP

Given the errors seen what would be the best debug to use??

wlandebug or tcpdump ??

I went ahead and enabled since my logs are complaining about association
and
authentication..

yeaguy# wlandebug -i wlan0 auth+assoc
net.wlan.0.debug: 0x0 => 0xc00000<assoc,auth>
yeaguy#


Any tips would be appreciated.. I have an end user continually
complaining
of disconects over FTP..


Thanks,

justin v


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--
Best  Regards,

Mubeesh Ali.V.M
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Hi Mubeesh,

It seems to be a random drop.. FTP will be humming along and then wlan0 will
go down..

I have the router set for channel 11...

i do not have these types of drops with other wifi capable devices..

ex.  WIN laptop, Playstaion 3... etc...



rum0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 2290
       ether 00:1e:e5:a8:bd:5a
       media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
       status: associated
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
       ether 00:1e:e5:a8:bd:5a
       inet 192.168.1.169 netmask 0xffffff00 broadcast 192.168.1.255
       media: IEEE 802.11 Wireless Ethernet OFDM/18Mbps mode 11g
       status: associated
       ssid vicnet channel 11 (2462 MHz 11g) bssid 00:22:6b:66:bf:74
       country US authmode WPA2/802.11i privacy ON deftxkey UNDEF
       AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 0 bmiss 7 scanvalid 450
       bgscan bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 5
       protmode CTS roaming MANUAL



Also yesterday, I lost complete connectivity to the router while my WIN PC
was connected and browsing just fine..

I had to bounce the interface and reset the default gateway and my
connection restored.

I did:

/etc/rc.d/netif restart && /etc/rc.d/routing restart


Thanks,

Justin
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interesting.. do you know of a better adapter to use??

ive done a search on wlan0 and bmiss.. alot of threads regarding that issue, but all the threads show "bmiss 7" ?? does that seem odd??

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