Hi Kentjr,
Thanks for your inquiry and Welcome to Centrify!
When you plug your reader(with card inserted) into your Mac, does the light on the card reader flash and/or show any activity?
After inserting your card into the reader and open Keychain Access. It will be the Keychain that appears with either a PIV-..., CAC-... or CACNG-... prefix:
Did you see the above? After the card being recognized in Keychain access, so we can use the card to connect to .mil website.
Please feel free to contact us if you have any questions.
Regards,
Albert