Date: Tue, 8 Apr 2014 18:21:18 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Sean Bruno <sbruno@freebsd.org> Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org> Subject: Re: iwn0 hangs randomly when starting the machine Message-ID: <CAJ-VmokDy%2BB5mHRgQemuRZ-m3eV0FS7nkzCPOaYMDd32ApCNcg@mail.gmail.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, 20/40 coex is supposed to be some corner of the spec that notices whether there's a 20mhz only AP on the extension channel and if so, flip everyone over to 20MHz. Is your DIR825 2GHz channel set to 20mhz or 40mhz? -a On 8 April 2014 18:18, Sean Bruno <sbruno@ignoranthack.me> wrote: > On Mon, 2014-03-31 at 07:30 +0800, Erich Dollansky wrote: >> Hi, >> >> since I upgraded to r263767, I have the following problem: >> >> Wireless does not start all the while. When it does not start, it hangs >> then forever. wpa_supplicant's state in top is then '-'. If I start >> wpa_supplicant by hand, it will hang and it cannot be stopped by >> control C. The light indicating that wireless is up is never on in this >> case. Rebooting the machine solves the problem. I did not find any >> other way to solve as the wireless related commands will hang. >> >> When the wireless network comes up, I can work just normal. >> >> Erich >> >> PS: >> >> The hardware: >> >> 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". 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. > > sean
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