[ath9k-devel] Tplink TL-WN822N drops out connections randomly on Arch Linux with Kernel 3.9.4 (Mark Lee)

[Oleksij Rempel <linux@rempel-privat.de>]

Am 18.06.2013 21:52, schrieb Peter V?gner:
> Hello,
> I am afraid I don't know how to do this.
> Do I have to recompile the whole kernel testing each commit or should I
> just recompile the driver or even track firmware changes?

if you didn't updated firmware, then no.
You should recompile complete kernel.

> Can you please point me to somewhere where I can read on how to proceed?

use google. here is one example:
http://www.project-insanity.org/2013/02/how-i-found-a-kernel-regression-using-git-bisect/



> Greetings
>
> Peter
>
>
> On 18.06.2013 21:41, Oleksij Rempel wrote:
>> Hi Peter,
>>
>> if it is regression, can you please do git bisect to find commit
>> affecting your connection. It can be outside of ath9k_htc source.
>>
>> Am 18.06.2013 20:20, schrieb Peter V?gner:
>>> Hello,
>>> I do also have similar device and am facing a strange problem with it.
>>> After booting up the machine I am unable to connect to certain wireless
>>> AP. That is an old Owislink WL5460 router set up in 2.4B+G mode with WPA
>>> encryption.
>>> After connecting to another AP e.g. non encrypted AP made up of my
>>> Android phone or even encrypted AP created on an iphone I can then
>>> connect to the problematic AP.
>>> I am on arch linux currently with kernel 3.9.6. The issue started
>>> happening as I have updated my kernel to 3.9.1. Previously everything
>>> has been working fine wor me.
>>>
>>> Here are some more details
>>>
>>> $ lsusb | grep Ather
>>> Bus 002 Device 005: ID 0cf3:9271 Atheros Communications, Inc. AR9271
>>> 802.11n
>>>
>>> $ iw dev wlp0s26u1u6 get power_save
>>> Power save: off
>>>
>>>
>>> $ dmesg | grep 00:4f:62:05:df:2d
>>> [   23.237360] wlp0s26u1u6: authenticate with 00:4f:62:05:df:2d
>>> [   23.331989] wlp0s26u1u6: send auth to 00:4f:62:05:df:2d (try 1/3)
>>> [   26.376049] wlp0s26u1u6: send auth to 00:4f:62:05:df:2d (try 2/3)
>>> [   28.335490] wlp0s26u1u6: deauthenticating from 00:4f:62:05:df:2d by
>>> local choice (reason=3)
>>> --- snip ---
>>> This is repeating over and over again until I connect to something else.
>>> And then the final successfull connection to this AP looks like...
>>> [  252.381096] wlp0s26u1u6: authenticate with 00:4f:62:05:df:2d
>>> [  252.520920] wlp0s26u1u6: send auth to 00:4f:62:05:df:2d (try 1/3)
>>> [  252.524098] wlp0s26u1u6: associate with 00:4f:62:05:df:2d (try 1/3)
>>> [  252.538293] wlp0s26u1u6: RX AssocResp from 00:4f:62:05:df:2d
>>> (capab=0x411 status=0 aid=3)
>>>
>>> $ dmesg | grep ath9k_htc
>>> [    7.353707] usb 2-1.6: ath9k_htc: Firmware htc_9271.fw requested
>>> [    7.353772] usbcore: registered new interface driver ath9k_htc
>>> [    7.829552] usb 2-1.6: ath9k_htc: Transferred FW: htc_9271.fw, size:
>>> 51272
>>> [    8.064565] ath9k_htc 2-1.6:1.0: ath9k_htc: HTC initialized with 33
>>> credits
>>> [    8.255145] ath9k_htc 2-1.6:1.0: ath9k_htc: FW Version: 1.3
>>> [  252.522905] ath9k_htc 2-1.6:1.0 wlp0s26u1u6: disabling HT as WMM/QoS
>>> is not supported by the AP
>>> [  252.522908] ath9k_htc 2-1.6:1.0 wlp0s26u1u6: disabling VHT as WMM/QoS
>>> is not supported by the AP
>>>
>>> $ sudo iw dev wlp0s26u1u6 scan dump
>>> BSS 00:4f:62:05:df:2d(on wlp0s26u1u6) -- associated
>>>      TSF: 254735798022 usec (2d, 22:45:35)
>>>      freq: 2412
>>>      beacon interval: 100 TUs
>>>      capability: ESS Privacy ShortSlotTime (0x0411)
>>>      signal: -61.00 dBm
>>>      last seen: 103493 ms ago
>>>      Information elements from Probe Response frame:
>>>      SSID: predok
>>>      Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
>>>      DS Parameter set: channel 1
>>>      ERP: <no flags>
>>>      Extended supported rates: 24.0 36.0 48.0 54.0
>>>      WPA:     * Version: 1
>>>           * Group cipher: TKIP
>>>           * Pairwise ciphers: TKIP
>>>           * Authentication suites: PSK
>>>      RSN:     * Version: 1
>>>           * Group cipher: TKIP
>>>           * Pairwise ciphers: CCMP
>>>           * Authentication suites: PSK
>>>           * Capabilities: (0x0000)
>>>
>>> $ sudo iw dev wlp0s26u1u6 scan dump
>>> [sudo] password for peto:
>>> BSS 00:4f:62:05:df:2d(on wlp0s26u1u6)
>>>      TSF: 255417536590 usec (2d, 22:56:57)
>>>      freq: 2412
>>>      beacon interval: 100 TUs
>>>      capability: ESS Privacy ShortSlotTime (0x0411)
>>>      signal: -59.00 dBm
>>>      last seen: 386 ms ago
>>>      Information elements from Probe Response frame:
>>>      SSID: predok
>>>      Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
>>>      DS Parameter set: channel 1
>>>      ERP: <no flags>
>>>      Extended supported rates: 24.0 36.0 48.0 54.0
>>>      WPA:     * Version: 1
>>>           * Group cipher: TKIP
>>>           * Pairwise ciphers: TKIP
>>>           * Authentication suites: PSK
>>>      RSN:     * Version: 1
>>>           * Group cipher: TKIP
>>>           * Pairwise ciphers: CCMP
>>>           * Authentication suites: PSK
>>>           * Capabilities: (0x0000)
>>>
>>>
>>>
>>> Thanks and greetings
>>
>>
>


-- 
Regards,
Oleksij