WiFi hotspot keeps dropping

[Adrian Chadd]

OH wow, I only JUST saw this, sorry!


On Sun, 21 Jun 2020 at 03:40, D'Arcy Cain <darcy at 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 at 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 at VybeNetworks.com, VoIP: sip:darcy at druid.net
>
>