I reinstalled an old 2015 Apple computer today, and I ran into a few issues.
- During system install, it failed because of some SSL issues, and I had to change the system's clock to prior 2017 for the install to work (got error "No package could be installed")
- After install, things seemed smooth but many websites show a SSL error.
I checked the clock and it's correct. I checked the KeyChain "login" certificates and there are none that are invalid. I restarted.
I'm not sure how to fix that issue, it's weird that the computer says the certificate "will be valid 0 days from now" although it will expire in June 2022 (in 2 months).
Could there be another clock that is wrong?