Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:51987 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751991Ab3B0XWy (ORCPT ); Wed, 27 Feb 2013 18:22:54 -0500 Message-ID: <1362007368.8172.13.camel@jlt4.sipsolutions.net> (sfid-20130228_002258_317956_B6FB3E75) Subject: Re: Interesting behaviour when AP enables/disables HT From: Johannes Berg To: Ben Greear Cc: "linux-wireless@vger.kernel.org" Date: Thu, 28 Feb 2013 00:22:48 +0100 In-Reply-To: <512E92FD.2090106@candelatech.com> (sfid-20130228_001314_338433_42408E0E) References: <512E92FD.2090106@candelatech.com> (sfid-20130228_001314_338433_42408E0E) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, 2013-02-27 at 15:13 -0800, Ben Greear wrote: > I was doing some tests where I change the AP's configuration > (enable/disable HT, enable/disable HT40, etc) on a somewhat > hacked 3.7.9+ kernel. > > One thing I noticed is that if stations are associated using /a, > but I quickly reconfigure the AP to use /a/n mode (ie HT enabled), > the stations stay in 'no-ht' mode. > > If I down/up the stations, they come up in HT mode. You probably didn't flush the scan cache on the stations before reconnecting after the reconfiguration. johannes