Hello @PKInoob88 ,
Thank you for your waiting.
I have done a test in my lab.
I can request certs no matter the option is 'Automatic login only when in intranet zone' or 'Prompt for username and password' from internet options. I have checked in two different PKI environments.
Can you please check if there is the same behavior on different PCs.
Can you please check if there is the same behavior about different users.
Best Regards,
Daisy Zhou