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From: Larry Finger <Larry.Finger@lwfinger.net>
To: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: Drunk Cat <natserver2@gmail.com>, linux-wireless@vger.kernel.org
Subject: Re: alfa awus036nhr v2 and module rtl8xxxu
Date: Fri, 5 Feb 2016 10:43:55 -0600	[thread overview]
Message-ID: <56B4D14B.50502@lwfinger.net> (raw)
In-Reply-To: <wrfjd1scmkz6.fsf@redhat.com>

On 02/04/2016 11:41 AM, Jes Sorensen wrote:
> Larry Finger <Larry.Finger@lwfinger.net> writes:
>> On 02/04/2016 10:45 AM, Jes Sorensen wrote:
>>> Drunk Cat <natserver2@gmail.com> writes:
>>>> problem: it does not connect to any wifi network you can see the time out on
>>>> dmesg
>>>>
>>>>
>>>>> lsusb
>>>>
>>>> Bus 002 Device 007: ID 0bda:817f Realtek Semiconductor Corp. RTL8188RU
>>>> 802.11n WLAN Adapter
>>>>
>>>>> iwconfig
>>>> wlp0s20u1  IEEE 802.11bgn  ESSID:off/any
>>>>             Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm
>>>>             Retry short limit:7   RTS thr=2347 B   Fragment thr:off
>>>>             Power Management:off
>>>>> dmesg
>>>
>>> Not sure what distribution you are running, but I am seeing problems
>>> with NetworkManager in recent Fedora.
>>>
>>> Could you try the following:
>>> 1) Unplug the WiFi dongle
>>> 2) (Re)load the driver (rmmod rtl8xxxu ; insmod rtl8xxxu)
>>> 3) Restart NetworkManager 'systemctl restart NetworkManager'
>>> 4) Plug in the WiFi dongle
>>
>> Jes,
>>
>> I can confirm what Drunk Cat sees. There is something different about
>> the RTL8192RU as using the iwconfig utility shows no APs in the
>> scan. I hope to get to debugging the problem soon.
>
> OK - thats unfortunate. Most likely the wrong antenna path is being
> enabled for it, or something like that.
>
> Once I finish up the 8723bu/8192eu patchset, I'll try to find some time
> to look at it, if you don't nail it before.

It definitely is an antenna path problem. I finally got a few scans with signal 
levels in the -100 dBm range.

Larry



  reply	other threads:[~2016-02-05 16:43 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-27 23:36 alfa awus036nhr v2 and module rtl8xxxu Drunk Cat
2016-02-04 16:45 ` Jes Sorensen
2016-02-04 17:39   ` Larry Finger
2016-02-04 17:41     ` Jes Sorensen
2016-02-05 16:43       ` Larry Finger [this message]
2016-02-09 20:59       ` Jes Sorensen
2016-02-09 21:00       ` Jes Sorensen
2016-02-10  1:11         ` Larry Finger
2016-02-10  2:00           ` Jes Sorensen
     [not found]             ` <CAOhKHAXH-PCyWQSpuuZ=-6BnE0PeDks-4p9A3G_86OHLfEdU=w@mail.gmail.com>
2016-02-10 15:49               ` Larry Finger
2016-02-28 23:01                 ` Jes Sorensen
2016-02-29  6:57                   ` Larry Finger
2016-02-29 12:28                     ` Jes Sorensen
2016-02-29 21:34                       ` Larry Finger
2016-03-03 21:54                         ` Jes Sorensen

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