"Trusted Certificates" and auto provisioning

[complex1]

(05-06-2022 03:19 PM)jobst Wrote:  Hi

Been using for a long time 'auto provisioning', its been working very well, except - as I now noticed - at the end of September 2021 this stopped working, all of my phone have not been updating/auto-provisioning ever since.

Now I have to move around a few phones (all of them are WFH phones), and I noticed if I turn on "Only Accept Trusted Certificates" the phones will NOT update, if I turn it off they will.

However this has been working a long time when turned on, also the server has been using "Letsencrypt Certificates" for years. If I check the servers certificates with external cert checkers they all show OK.

What has changed?
Why does this not work anymore?

Hi,

Please read this link
https://letsencrypt.org/docs/dst-root-ca...mber-2021/

A solution to this could be to update the phone firmware if possible.