Return-path: Received: from mail-oi0-f47.google.com ([209.85.218.47]:33594 "EHLO mail-oi0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753140AbcBEQn6 (ORCPT ); Fri, 5 Feb 2016 11:43:58 -0500 Received: by mail-oi0-f47.google.com with SMTP id j125so44426739oih.0 for ; Fri, 05 Feb 2016 08:43:58 -0800 (PST) Subject: Re: alfa awus036nhr v2 and module rtl8xxxu To: Jes Sorensen References: <56B38CDF.9010806@lwfinger.net> Cc: Drunk Cat , linux-wireless@vger.kernel.org From: Larry Finger Message-ID: <56B4D14B.50502@lwfinger.net> (sfid-20160205_174406_876596_2218C8A6) Date: Fri, 5 Feb 2016 10:43:55 -0600 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 02/04/2016 11:41 AM, Jes Sorensen wrote: > Larry Finger writes: >> On 02/04/2016 10:45 AM, Jes Sorensen wrote: >>> Drunk Cat 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