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Date:      Mon, 18 Jul 2005 15:06:29 +0300
From:      Niki Denev <nike_d@cytexbg.com>
To:        Erik Winge <erik.winge@gmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: if_ural in 6.0-BETA1
Message-ID:  <42DB9B45.9010305@cytexbg.com>
In-Reply-To: <4cf221cc050718035328cfb071@mail.gmail.com>
References:  <4cf221cc050717045319c1f3cf@mail.gmail.com>	<42DA9332.2030200@errno.com> <4cf221cc050718035328cfb071@mail.gmail.com>

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Erik Winge wrote:
> On 7/17/05, Sam Leffler <sam@errno.com> wrote:
> 
>>Erik Winge wrote:
>>
>>>Hi,
>>>
>>>After upgrading to 6.0-BETA1 I have started using an Asus ural-bases
>>>wireless card.
>>>
>>>Besides lower performance than with Windows, this driver seems to have
>>>some stability issues. I keep getting "Corrupted MAC on
>>>input"-messages from scp when copying files. The files I have been
>>>testing with are about 5MB in size, and the problem interrupts every
>>>one of 4-5 upload attempts.
>>
>>The driver has no tx rate control support and defaults to 1Mb/s so you
>>must explicitly set the tx rate to get any reasonable performance.
>>However even when locked to 54M on an 11g channel I never saw tcp
>>netperf performance much more than ~15Mb/s with a strong signal.  I
>>never saw data corruption but mostly was testing wpa.
>>
>>In general I wasn't impressed with the device and the driver definitely
>>needs work.  Hard to recommend it.
> 
> 
> I experience more weirdness. It seems the card will disassociate from
> the ap if there is no network activity for some time.
> 
> If I use the network, for instance streaming audio or having a
> mailprogram check mail regularly, everything works fine. However if I
> close all programs, and leave the computer alone for some minutes, it
> will lose the network connection. ifconfig then reports status:no
> carrier
> 
> I have tried running "wpa_cli reassociate", but it doesn't find my ap,
> and I have to  kill wpa_supplicant and restart it to reconnect. Is
> this a driver problem, or could it possibly be wpa_supplicant?
> 
> Erik Winge

I'm not really sure, so this is just a guess, but can this be caused by
the power management of the card?
Does it dissociate when its configured with '-powersave' flag?

--niki



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