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List:       hostap
Subject:    Re: Hostapd: Wi-Fi Channels
From:       Arend Van Spriel <arend.vanspriel () broadcom ! com>
Date:       2017-07-24 8:36:42
Message-ID: CAF7Mx6obb=npVfRh+nV_942KsOM4QVMfYGxLQJQrRRzyN3ov-Q () mail ! gmail ! com
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On Fri, Jul 21, 2017 at 5:06 PM, Matthew Phillips
<matthew1phillips@gmail.com> wrote:
> Hi!
>
> I am running hostapd on linux in the 5GHz spectrum. I have a program
> that modifies the config file and then starts up hostapd using the
> selected channel. However when I restart hostapd, I have found that it
> will sometimes begin scanning channels instead of setting up
> correctly. However this doesn't happen with the lower channels (36,
> 40, 44, and 48, again 5GHz). Does anyone know why this might happen
> for higher channels (157-165)? Is this expected behavior, and is there
> a way to disable it?

On certain channels it is not allowed to initiate radiation unless
there is already a transmitter active hence the scan. This is all for
regulatory compliance so it can not be disabled if I am not mistaken.

Regards,
Arend

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