Date: Fri, 26 Jun 2020 12:52:52 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: "D'Arcy Cain" <darcy@druid.net> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: WiFi hotspot keeps dropping Message-ID: <CAJ-VmokRR=CEpraKkF-HOF9khU5XtB4=L2LnKqisunotrqS%2B_Q@mail.gmail.com> In-Reply-To: <a7760ba2-98dd-d9e5-aede-6b523c5533a4@druid.net> References: <07f4e7f5-095e-e89e-2c55-d283ca62149c@druid.net> <CAJ-Vmo=yNcRg4wpwO1hiDkkog8ZHfx%2BZXaP59OERO0iYp3%2BuwQ@mail.gmail.com> <CAJ-Vmo=AfhsAy=bmg%2Brg%2BSJe=PdcMYunnJG_H1d8i0Roz-p8LQ@mail.gmail.com> <a7760ba2-98dd-d9e5-aede-6b523c5533a4@druid.net>
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OH wow, I only JUST saw this, sorry! On Sun, 21 Jun 2020 at 03:40, D'Arcy Cain <darcy@druid.net> wrote: > On 2020-06-19 12:14, Adrian Chadd wrote: > > [snip] Also, did you plug in something USB-3 related recently? :-) > > > > USB-3 / USB-C's signaling frequency interferes with 2.4GHz :-) > > No. The only USB-C I have is my phone which I have never plugged into the > computer. > > Here's another data point. It seems that I don't necessarily have to > restart hostapd. If I do "ifconfig wlan0 scan" it comes back as well. > > Ok, when it next happens, do this: sysctl dev.ath.0.forcebstuck=1 .. that forces a stuck beacon event, which resets the NIC. I wonder if the problem is the NIC is now deaf. I fixed some issues in FreeBSD-HEAD around noise floor calibration failures which led to NIC deafness, but you won't even SEE that debugging unless you've compiled a custom kernel with the above options. Please let me know if you need any help compiling up a custom kernel. -adrian -- > D'Arcy J.M. Cain <darcy@druid.net> | Democracy is three wolves > http://www.druid.net/darcy/ | and a sheep voting on > +1 416 788 2246 (DoD#0082) (eNTP) | what's for dinner. > IM: darcy@VybeNetworks.com, VoIP: sip:darcy@druid.net > >
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