Hi Tom,

Is this the forum post you're referring to?

https://www.labkey.org/home/Support/Developer%20Forum/announcements-thread.view?rowId=12168

The problem with that one was due to the certificate that was self-signed was done incorrectly and required a whole new CSR and keystore to be made.

Do you have more than one certificate? The error usually doesn't state the certificate as expired if it isn't. What is the date of the certificate's expiration date? Can you access the certificate to confirm the details? Can you also check the root certificate (and the intermediate certificate if available) to make sure those are current as well?

Regards,

Jon