eap_peap: ERROR: (TLS) Alert read:fatal:unknown CA

Dario Barbon dbarbon at olicom.eu
Mon Jan 8 16:48:17 UTC 2024

Hi Kamil, I generated the certificates by following this tutorial 
("configure EAP-TLS" section): 

I'm not thinking that certificates are deleted ... I saw this happens 
many times! And it happens (in my limited experience) always with 
Android 11 devices.

Sometimes users deleted the WiFi connection: that action deletes also 
WiFi user installed certificates. Sometimes, after a bunch of 
unsuccessful connection tries, Android 11 devices deletes certificates.

In comparison with Android 12 devices that retains certificates but 
required to switch off/on WiFi to successfully reconnect.

Dario Barbon

Il 08/01/2024 17:33, Kamil Jońca ha scritto:
> Dario Barbon <dbarbon at olicom.eu> writes:
>> Hi Kamil, thanks for sharing your experience.
>> The phones aren't MDM managed; I experienced the certificate removal
>> issue on Motorola Defy and CAT S62PRO (both Android 11). Maybe that's
>> something wrong with my self signed CA and client certificates... May
>> I ask you how did you generate your certificates?
> I would reverse this quesiton: How do YOU generate certificates and
> put them into phone(s)? And why do you think that certificates are
> deleted?
> KJ
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