Update Root Certificate (Let's Encrypt)
Posted on Monday, November 01 2021.
After the Let’s Encrypt root certificate expired at the end of September 2021, a few people are still experiencing a certificate expired warning on our websites. We have updated our websites with the current certificate; however, some users may need to update the certificate on their computers. Specifically, we have seen this issue with Mac OS.
Steps to resolve:
- Download and open: https://letsencrypt.org/certs/lets-encrypt-r3.pem. The Add Certificates window will pop open.
- Under keychain, change the selection to System.
- Click Add. If prompted, enter your computer password.
- Restart the browser
The SLATE Team