During the enrollment for a DigiCert PKI Platform administrator certificate, or any other certificate that uses the PKI Client as the enrollment method, and using the Computer certificate store for storing the keys/certificate, the enrollment will get stuck at the below page (repeatedly):
You need to install the DigiCert Authentication Client browser extension before you can enroll for your certificate, which allows your browser to communicate with the DigiCert PKI Client agent running on your workstation.
Once the extension has been installed, please return to the same enrollment page to complete your certificate installation process. Assuming the PKI Client software is also installed, you will be able to provision and manage your certificates using the DigiCert browser extension.
Overview of DigiCert Authentication Client extension installation
Once the PKI Client software and browser extensions have been installed, visit the enrollment URL contained within the enrollment email you received from DigiCert to initiate the certificate enrollment process.