Hello,
Thank you for posting in Q&A forum.
The Common Name (CN) in the Certificate Signing Request (CSR) should match the fully qualified domain name (FQDN) of your server. For example, if your server's FQDN is server.example.com, then the Common Name should be server.example.com. Ensure that the CN is correctly set in your CSR.
Refer to the following link for detailed steps on how to issue and install an SSL certificate on an IIS web server running on Windows Server: https://woshub.com/install-ssl-certificate-iis-windows/
Disclaimer: The above-mentioned website links are not from Microsoft's official website. The information provided on these pages is relatively accurate and reliable. However, you should be aware that these pages may contain product advertisements that you may not need, so please read them carefully and confirm that they are what you need before you download and install these advertising products.
I hope the information above is helpful.
Best Regards,
Yanhong Liu
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