TP-Link TL-WN727N V3 - cannot scan or connect to anything

[Adrian Chadd]

Ok.

Kevin?

-a


On 30 December 2013 11:53, Toomas Aas <toomas.aas at raad.tartu.ee> wrote:
> Hello Adrian!
>
> Thanks for the idea.
>
> I tried with just "ifconfig wlan0 up". Indeed it seems that the "scan" is
> redundant, as wlandebug output shows that a scan is started immediately
> after I issue the "ifconfig wlan0 up" command. Alas, the scan result is
> still the same as in my original message, and "ifconfig wlan0 list scan"
> shows no results.
>
>
> On Mon, 30 Dec 2013 Adrian Chadd <adrian at freebsd.org> wrote:
>
>> Don't do up scan.
>>
>> Just do
>>
>> ifconfig wlan0 up
>>
>> ifconfig wlan0 list scan
>>
>> There may be some stupid race conditions there.
>>
>> -a
>>
>>
>> On 30 December 2013 10:36, Toomas Aas <toomas.aas at raad.tartu.ee> wrote:
>>>
>>> Hello!
>>>
>>> I posted a request on the FreeBSD forums on this topic, but got no
>>> responses:
>>> http://forums.freebsd.org/viewtopic.php?f=46&t=43895
>>>
>>> So, I'll repeat it here hoping that it may catch the attention of some
>>> experts who are maybe not following the forums.
>>>
>>> I'm trying to get TP-Link TL-WN727N V3 USB wifi adapter working with my
>>> FreeBSD 9.2-STABLE amd64 system (r259472). It seems to me that this
>>> adapter
>>> uses Ralink RT5370 chipset, and support for this was merged to 9-STABLE
>>> in
>>> r259457.
>>>
>>> I plug in the adapter and it seems to be recognized:
>>>
>>> Dec 18 18:13:15 kernel: ugen2.2: <TPlink> at usbus2
>>> Dec 18 18:13:15 kernel: run0: <1.0> on usbus2
>>> Dec 18 18:13:15 kernel: run0: MAC/BBP RT5390 (rev 0x0502), RF RT5370
>>> (MIMO
>>> 1T1R), address f8:1a:67:19:40:24
>>>
>>> I create the wlan device:
>>>
>>> # ifconfig wlan0 create wlandev run0
>>>
>>> Then I try to scan, but both of the below commands return immediately
>>> without any result:
>>>
>>> # ifconfig wlan0 up scan
>>> # ifconfig wlan0 list scan
>>>
>>> I tried running wlandebug -i wlan0 +scan, and an endless supply of
>>> following
>>> is recorded in /var/log/messages:
>>>
>>> Dec 18 21:47:26 kernel: wlan0: ieee80211_check_scan: active scan, append
>>> Dec 18 21:47:26 kernel: wlan0: ieee80211_scanreq: flags 0x1b duration
>>> 0x7fffffff mindwell 0 maxdwell 0 nssid 0
>>> Dec 18 21:47:26 kernel: wlan0: scan_update_locked: current scanner is
>>> <none:none>, switch to <wlan0:STA>
>>> Dec 18 21:47:26 kernel: wlan0: start_scan_locked: active scan, duration
>>> 2147483647 mindwell 0 maxdwell 0, desired mode auto, flush
>>> Dec 18 21:47:26 kernel: wlan0: scan set 1g, 6g, 11g, 7g, 2g, 3g, 4g, 5g,
>>> 8g,
>>> 9g, 10g dwell min 20ms max 200ms
>>> Dec 18 21:47:26 kernel: wlan0: start_scan_locked: active scan already in
>>> progress
>>> Dec 18 21:47:26 kernel: wlan0: scan_task: chan   1b ->   1g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:26 kernel: wlan0: scan_task: chan   1g ->   6g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:27 kernel: wlan0: scan_task: chan   6g ->  11g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:27 kernel: wlan0: scan_task: chan  11g ->   7g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:27 kernel: wlan0: scan_task: chan   7g ->   2g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:27 kernel: wlan0: scan_task: chan   2g ->   3g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:27 kernel: wlan0: scan_task: chan   3g ->   4g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:28 kernel: wlan0: scan_task: chan   4g ->   5g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:28 kernel: wlan0: scan_task: chan   5g ->   8g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:28 kernel: wlan0: scan_task: chan   8g ->   9g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:28 kernel: wlan0: scan_task: chan   9g ->  10g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:29 kernel: wlan0: sta_pick_bss: no scan candidate
>>> Dec 18 21:47:29 kernel: wlan0: scan_task: done, restart [ticks 1706420,
>>> dwell min 20 scanend 2149187524]
>>> Dec 18 21:47:29 kernel: wlan0: scan_task: chan  10g ->   1g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:29 kernel: wlan0: scan_task: chan   1g ->   6g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:29 kernel: wlan0: scan_task: chan   6g ->  11g [active,
>>> dwell
>>> min 20ms max 200ms]
>>> Dec 18 21:47:29 kernel: wlan0: scan_task: chan  11g ->   7g [active,
>>> dwell
>>> min 20ms max 200ms]
>>>
>>> I've watched this output for 10 minutes and it just seems to go on
>>> indefinitely. I'm not sure what to think of this. There are several
>>> access
>>> points near me that the scan should find, but it doesn't. When I plug in
>>> the
>>> same adapter to a laptop with Windows 7, it successfully shows the nearby
>>> access points and allows me to connect to one, so the adapter is not
>>> broken.
>>> Any ideas for further troubleshooting are welcome.
>>>
>>> --
>>> Toomas Aas
>>>
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>>> "freebsd-wireless-unsubscribe at freebsd.org"
>>
>>
>
>
>
> --
> Toomas Aas
> Tartu linnakantselei arvutivõrgu peaspetsialist
> tel 736 1274
> mob 513 6493