Hi Tom and Jon,

Daniel and I discussed this on today's call.

As you've already identified, the problem is that the certificate is not trusted by the library that Rlabkey is using to make the HTTPS request.

As a temporary workaround, you can tweak the script to disable the certificate validation. See the code snippet under the "Certificate Test" heading here: https://www.labkey.org/home/Documentation/wiki-page.view?name=rlabkeyhttps

You can also add it to the trusted certificate bundle:

https://curl.haxx.se/docs/sslcerts.html

Thanks,
Josh