Date: Wed, 9 Apr 2014 09:36:42 +0800 From: Erich Dollansky <erichsfreebsdlist@alogt.com> To: sbruno@freebsd.org Cc: sbruno@ignoranthack.me, "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org> Subject: Re: iwn0 hangs randomly when starting the machine Message-ID: <20140409093642.19c2f5cb@X220.alogt.com> In-Reply-To: <1397006320.5173.2.camel@powernoodle.corp.yahoo.com> References: <20140331073054.5d7642d6@X220.alogt.com> <1397006320.5173.2.camel@powernoodle.corp.yahoo.com>
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Hi, On Tue, 08 Apr 2014 18:18:40 -0700 Sean Bruno <sbruno@ignoranthack.me> wrote: > On Mon, 2014-03-31 at 07:30 +0800, Erich Dollansky wrote: > > > > since I upgraded to r263767, I have the following problem: > > > > Wireless does not start all the while. When it does not start, it > > > > iwn0: <Intel Centrino Advanced-N 6205> mem 0xf2500000-0xf2501fff > > irq 17 at device 0.0 on pci3 > > Hrm ... so I have this one in my T520. > > I've been experimenting with routers and such ... and I found > something *interesting* with iwn(4). > > On my dlink dir825-C1 I have a channel option "HT20/40 Coexistence". the router I experience the problem is a D-Link too. But it is not mine. > If I disable this, I cannot associate in the 2.4G hz channel at all. > I don't know if this is clueful, but it seems to mirror my problems at > work. Associates for a moment and then drops. > > Since I don't know what this really means, I thought I'd chuck it over > here and see if its meaningful. On my own router, a ProLink if I remember right, I can only switch between 20 and 40 MHz channel with but I cannot have both. I wonder why the router needs the coexistence. Is it to communicate with other routers to find free channels? Erich
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