Hello,
Based on the error message you provided, it seems that the issue might be related to a problem with the private key associated with the SSL certificate.
Here are a few things you can try to resolve the issue:
- Check the permissions on the private key file: Make sure that the user account running the IIS service has read permissions on the private key file associated with the SSL certificate.
- Verify that the private key is accessible: You can use the certutil command-line tool to verify that the private key is accessible. Open a command prompt and run the following command: certutil -repairstore my "Certificate Thumbprint". Replace "Certificate Thumbprint" with the thumbprint of the SSL certificate.
- Check the cryptographic service provider: Make sure that the cryptographic service provider (CSP) used to generate the SSL certificate is installed on the server and is accessible to the user account running the IIS service.
- Verify that the SSL certificate is valid: Make sure that the SSL certificate is valid and has not expired. You can use the certutil command-line tool to verify the validity of the SSL certificate. Open a command prompt and run the following command: certutil -verify "Certificate Thumbprint". Replace "Certificate Thumbprint" with the thumbprint of the SSL certificate.
I hope this helps!
Regards,
Zunhui