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Date:      Sat, 20 Jun 2015 11:00:42 -0400
From:      Adrian Chadd <adrian@freebsd.org>
To:        Zsolt SZASZ <zsolty_szasz@yahoo.com>,  "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>
Subject:   Re: trouble connecting to wifi
Message-ID:  <CAJ-Vmo=eRrv60Oei3gKa2N2gZxFUQ4qfZGt5MjuECTvWHRWg1A@mail.gmail.com>
In-Reply-To: <55846575.8000501@yahoo.com>
References:  <716422696.1187863.1434616682661.JavaMail.yahoo@mail.yahoo.com> <CAJ-Vmon-f5gowp3qxXOba4KoO33bGWSQQ_YE4MiPrLNYbp8R=A@mail.gmail.com> <55846575.8000501@yahoo.com>

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Hi,

yes - this'll hurt performance, but I'm more interested in whether
disabling ampdutx affects performance/stability. If disabling AMPDU TX
(but leaving AMPDU RX enabled) reduces the instability/stuck beacons
then I have more useful information.


-adrian


On 19 June 2015 at 14:54, Zsolt SZASZ <zsolty_szasz@yahoo.com> wrote:
> Hi,
>
> * dev.ath.0.hal.force_full_reset=1 <- its already setup, this is nothing to
> do with the ability to connect with my devices to the wifi, but it helps me
> to have a smoother download - without this I have interruptions (spikes)
> when I download - so its a good thing.
>
>  Then I tried:
> # ifconfig ath0_wlan0 -ampdutx but it hurts my download speeds. Without this
> I achieve download speeds like 15-17MB/sec but when this is active I've got
> only 3MB/sec. Also, I don't know if my wifi is stable with this setting on,
> I need more days to check :)
>
>
>
> On 6/18/2015 4:12 PM, Adrian Chadd wrote:
>>
>> On 18 June 2015 at 01:38, zsolty szasz via freebsd-wireless
>> <freebsd-wireless@freebsd.org> wrote:
>>>
>>> Hi,
>>>
>>> I am using pfsense 2.2.2 at home. I have a computer dedicated to be a
>>> home router which contains a PCI slot wireless adapter with Atheros 9227
>>> chipset. The model of the wireless adapter is TP-Link TL-WN51ND and it has
>>> two antennas. This comply with IEEE 802.11n, and provides wireless speed up
>>> to 300Mbps according to the manufacturer.
>>> This adapter was recognized well by pfsense and I have setup with ease in
>>> "N" using channel 3 - I live in a crowded neighborhood and I saw that nobody
>>> is using channel 3. With this settings the wifi is working fine one or two
>>> days but after that I have to do something like "ifconfig ath0 down |
>>> ifconfig ath0 up" to work again a couple of days more. The issue is that
>>> from my laptop or phones I can see my wifi but I cant connect. I also
>>> receive a lot of "ath0 stuck beacon resetting" messages in pfsense. For a
>>> couple of weeks I changed back to "G" mode to see if its stable and its
>>> working perfectly stable with no ath0 stuck beacon messages at all!
>>> I really would like to use in "N" because of greater download speeds but
>>> I'm lazy to go every time in front of the router and type ifconfig ath0
>>> down/up every time. So please advise me what can I do, or check or setup.
>>> Kind regards,
>>
>> Hi,
>>
>> So:
>>
>> * Set dev.ath.0.hal.force_full_reset=1 ; see if that helps
>> * Since 11n is not working but 11g does, it may be something to do
>> with using 11n features. 11n is always /configured/ in the NIC. So,
>> try doing this:
>>
>> # ifconfig wlan0 -ampdutx
>>
>> .. to disable AMPDU transmit. See if that makes it behave differently.
>>
>>
>>
>> -adrian
>
>



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