Hello @PKInoob88 ,
Thank you for posting here.
Based on the description above, would you please confirm the information below:
1.Do you receive the error message "RPC server is unavailable" immediately after you type https://ip/certsrv or https://fqdn/certsrv and click Enter? If not, which step do you receive the error message?
2.If you enroll three certs, one cert is for IP address and the second cert is for FQDN and the third cert is for hostname, then bind one https web page for IP address, bind the second https web page for FQDN and bind the third https web page for hostname, then check if it helps.
Should you have any question or concern, please feel free to let us know.