network removed from wpa_supplicant.conf

Christoffer Gurell christoffer.gurell at
Tue Dec 15 03:54:38 PST 2015

Thanks for the answer !! This will really help me narrow down what is happening.

On Sun, Dec 6, 2015 at 10:35 AM, Jouni Malinen <j at> wrote:
> On Tue, Dec 01, 2015 at 09:45:13AM +0100, Christoffer Gurell wrote:
>> The wifi network the devices are connected to is of very low quality
>> (bad signal and high noise) but it still works enought for our
>> purposes. The devices seem to be temporarily blacklisting the AP every
>> now and then. This is not ideal but as long as they remove it from the
>> blacklist again I can live with this.
>> But some devices finally blacklist and remove the network (exactly at
>> the same time) from wpa_supplicant.conf. Never again attempting to
>> connect to that SSID unless i add it back manually.
>> My question is if there is anything in wpa_supplicant that could cause
>> this behaviour, like a "remove repeatedly blacklisted network under
>> condition N" or if I should look elsewhere in the platform for
>> something that may tell wpa_supplicant to remove and blacklist the
>> network for some reason.
> wpa_supplicant does not remove a network block on its own apart from the
> special cases of temporary network blocks used for WPS, P2P, and
> Interworking purposes. Networks that fail to connect do get temporarily
> blacklisted in two different mechanism, but neither of those actually
> removes the network profile from configuration. In other words,
> something outside wpa_supplicant is needed to do what you described
> here.
> --
> Jouni Malinen                                            PGP id EFC895FA

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