Hi
Welcome to Centrify Community!
Can you help clarify when do you see the error: "The operation couldn't be completed. (POSIX error -9802 - Unknown Error: -9802)"?
Do it appear when you open the browser?
Launching to the CAC website?
After the authentication?
As the error code is from Apple process, we might need some more time to research on this. Please help keep us posted with the information above. Thank you!
BR,
Ivan