From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.newportit.com ([74.50.55.245]:60113 "EHLO wapdot.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752514Ab3GJF4t (ORCPT ); Wed, 10 Jul 2013 01:56:49 -0400 Message-ID: <51DCF7A0.5000301@newportit.com> (sfid-20130710_075652_879903_4E6C38D8) Date: Tue, 09 Jul 2013 22:56:48 -0700 From: Steve Freitas MIME-Version: 1.0 To: "Grumbach, Emmanuel" CC: "ilw@linux.intel.com" , "linux-wireless@vger.kernel.org" Subject: Re: [Ilw] Re: Slow throughput on Ultimate-N 6300 References: <51BBF4F1.1050301@newportit.com> <51DCDD54.9090100@newportit.com> <0BA3FCBA62E2DC44AF3030971E174FB3019FFDDF@HASMSX103.ger.corp.intel.com> <51DCF4BF.5010900@newportit.com> <0BA3FCBA62E2DC44AF3030971E174FB3019FFE28@HASMSX103.ger.corp.intel.com> In-Reply-To: <0BA3FCBA62E2DC44AF3030971E174FB3019FFE28@HASMSX103.ger.corp.intel.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Wonderful, thank you for the tips. I'll wade back into it tomorrow or the next day and let you know what I find. Thank you, Steve On 07/09/13 22:55, Grumbach, Emmanuel wrote: >> Emmanuel, >> >> Thank you for your quick response! >> >> It is a regression. I regularly had 300 Mbps speeds on this very access point, >> but it was years ago, in the 2.6 kernel series. However, I believe, from >> extensive online searches, that Intel has disabled the N functionality in the >> firmware on Linux, ostensibly until they (you? :-) >> ) can fix whatever problem they were seeing. With the demise of the Intel >> Linux Wireless bug tracker, though, public tracking of the bug has been >> impossible. There are now-dead links to the defunct bug tracker over this >> very issue. >> > 11n hasn't been disabled in firmware, but rather in driver. > There is a bug we know about the "fail to flush tx fifo" thing that people reports (through mailing list or bugzilla of RedHat). > Can you please send the output of the kerne log (dmesg)? > >> Sadly I only get 2 MByte/s on N, and under 1 MByte/s G. >> >> I have not tried another access point in ages. Tired of replacing fried Netgears >> and Dlinks and Belkins, I've converted all my friends and families to Apple's >> access points. I'll try to locate something else and see how it goes. > No need to. If you say that it worked, then it should still work. The issue I was thinking is the way they use some fancy feature of WiFi that no one implements (besides the wifi module of their devices of course). > Also, can you please try different firmwares from http://wireless.kernel.org/en/users/Drivers/iwlwifi#Download ? > I wonder if newer firmware has made things worse. You may want to try older firmware. > To do so, open the tarball from that you'll download and copy iwlwifi-*.ucode to /lib/firmware.