Re: Atheros AR9462 - 5Ghz not working

[<mgreger@cinci.rr.com>]

---- mgreger@cinci.rr.com wrote: 
> 
> ---- Sedat Dilek <sedat.dilek@gmail.com> wrote: 
> > On Tue, May 22, 2018 at 7:21 PM,  <mgreger@cinci.rr.com> wrote:
> > > I've run out of ideas and am hoping someone here can help.
> > >
> > > All I want to do is connect a client to my 5Ghz network.
> > >
> > > My client:
> > >   OS is Debian stable "Stretch" with sysvinit instead of systemd
> > >   Atheros AR9462 (World roaming 0x64 regdomain in EEPROM)
> > >   "iw reg set US"
> > >   "iw list" shows both 2.4Ghz and 5Ghz bands available.
> > >   "iw wlp3s0 survey dump" shows received traffic on 5Ghz bands.
> > >
> > > There are oodles of 5Ghz AP's within range, but scans (including passive scans) reveal only 2.4Ghz networks. My only guess was that it won't transmit due to regulatory requirements, but I cannot make it work.
> > >
> > > What I've tried:
> > >   Running with and without CRDA
> > >   Running latest mainline kernel
> > >   Hacking around on the ath9k driver and nl80211 to remove all regulatory enforcement.
> > >
> > > Nothing works and I'm pulling my hair out. Any help would be greatly appreciated.
> > 
> > Hi,
> > 
> > I try to give some initial help.
> > 
> > The linux-wireless driver is supported by ath9k driver see [1] and [2].
> > 
> > Unfortunately, you have not sent any log-files at least your dmesg-log.
> > No output of the above userspace commands or userspace-tools versions.
> > No information to VendorID/ProductID (PCI, USB, whatever).
> > It's not clear to me if this is a kernelspace (ath9k-driver) or
> > userspace (CRDA/regulatory) problem.
> > How should someone help you effectively?
> > 
> > The linux-wireless wiki has somne informations on how to debug
> > Atheros/Qualcomm ath9k-driver, see [3].
> > 
> > As a debianist I say try Linux v4.16 Debian packages from
> > stretch-backports (and maybe a higher version of wireless-regdb).
> > 
> > Try to ask questions the smart way [4] :-).
> > 
> > Hope this helps.
> > 
> > Regards,
> > - Sedat -
> > 
> > [1] https://wireless.wiki.kernel.org/en/users/drivers/ath9k
> > [2] https://wireless.wiki.kernel.org/en/users/drivers/ath9k/devices
> > [3] https://wireless.wiki.kernel.org/en/users/drivers/ath9k/debug
> > [4] http://www.catb.org/esr/faqs/smart-questions.html
> 
> 
> I have also built the latest wireless-regdb and crda, but it made no difference.



Did any of the information I posted point towards a cause?