Hi. I'm absolutely newbie in Apple devices. Trying to help my wife with this certificate issue. I get into Keychain Access but can't find "Show expired certificates" option there. I checked all the strings and "expiring" column in "All items" list and in "Certificates" and "My certificates" and "Key…

MacOS keychain issue

rg305 October 2, 2021, 7:59am 3

I also found this related recent post:

With what appear to be much simpler/shorter instructions.

Topic		Replies	Views
End-user certificate expiration problems Help	2	769	October 31, 2021
R3 certificate is expired on some Macs Help	4	1158	October 31, 2021
I have just found this: - https://mjtsai.com/blog/2021/09/24/some-web-sites-will-stop-working-with-el-capitan-and-older/ The Let’s Encrypt Root Certificate, the IdentTrust DST Root CA X3 certificate, has expired Help	5	462	May 13, 2022
[Part 2] My fullchain certificate seems to be breaking over time. [acme.sh] [macOS] Help	2	724	February 8, 2021
Help thread for DST Root CA X3 expiration (September 2021) Help	720	162821	November 3, 2022