A Message Is Displayed Indicating that the Certificate Chain Is Incomplete When You Add a Certificate

Cause Analysis

Generally, a certificate file issued by an intermediate agency contains multiple certificates, for example, a server certificate and a certificate chain in PEM format. This message may be generated when not all of the certificates are combined to form a complete certificate.

Solution

Combine all certificates to form a complete certificate and then fill it in. A server certificate must be placed before the certificate chain in a complete certificate file. The following shows the procedure:

1. Use Notepad to open all PEM certificate files.
2. Paste the server certificate before the certificate chain.

   Pay attention to the instructions that come with the certificates. The general rules are as follows:

   • No empty line between certificates.
   • Format of the certificate chain:

     -----BEGIN CERTIFICATE-----

     -----END CERTIFICATE-----

     -----BEGIN CERTIFICATE-----

     -----END CERTIFICATE-----