SSL certificate error: The certificate does not have a private key installed.

Error

SSL certificate error: The certificate does not have a private key installed.

Possible cause

1. If the private key is missing, it could mean that the SSL certificate is not installed on the same server which generated the Certificate Signing Request. FQDN is the fully qualified domain name of your website. It must be the same as what users type in the web browser.
2. CSR is generated for the SSL certificate. When generating the certificate, if we don't include the private key, the error message given above will be shown.

Possible resolution

Log into ADManager Plus and navigate to Admin Tab > General Settings > Connection > SSL Certificate Tool > Generate Certificate. This page allows you to create a CSR within ADManager Plus and that CSR could be shared with the CA to generate a .cer / .der / .crt / .pfx / .p12 / .pem / .p7b / .jks / .keystore file.

If its a third party certificate, you can import it to your MMC console and export it again with private key.