The issue is that your visitors’ browsers are unable to properly identify who issued your certificate. First, confirm that your visitors are not seeing an incorrect or outdated certificate. Once you have made sure that your visitors are seeing the correct certificate, the issue is most likely solved by installing the intermediate certificates. Below are the links that you can use to download your intermediate certificate from the vendor website: https://knowledge.digicert.com/generalinformation/INFO4331.html https://knowledge.geotrust.com/support/knowledge-base/index?page=content&id=AR1421 https://search.thawte.com/support/ssl-digital-certificates/index?page=content&id=AR1384 https://knowledge.rapidssl.com/support/ssl-certificate-support/index?page=content&id=AR1548 https://support.comodo.com/index.php?/Default/Knowledgebase/List/Index/108/sha-2
First, check your certificate license. There are two methods to install your certificate on multiple servers. The first method is to import the certificate, private key, and intermediate files on server #2, #3, etc. Or, create a new CSR and key file on server #2, #3, etc. and reissue the active certificate.
When the certificate is issued, the Certificate Authority (CA) will send an email to the Technical Contact listed on the order. That email will contain the certificate files.
For all technical support matters regarding your SSL certificate, you can contact your SSL provider, if needed. The CA does not provide direct support, but we will be able to help you right away, as we are more specialized. However, you can contact the CA directly for questions and support related to the actual validation process of the SSL certificate.
If you have the original private key on the active certificate, you can install it on the new server or provide it to your new web host. If you do not have the original private key, you will have to reissue your certificate with a new CSR.
You will need to cancel & reorder your certificate and generate a new CSR with the correct common name.
You can add additional domains to an active certificate by reissuing it.
This is because it is missing one or more required fields or the CSR contains non-alphanumeric characters in the required fields.
The private key is used on the server-side exchange for creating the secure connection. It should never be exposed to your SSL provider or outside users, unless specifically requested by your web host for installation. Please note if the private key is lost or deleted, you will have to make a new CSR and private key on your server. Your private key is not provided by the Certificate Authority (CA) or your SSL provider.
If this happens, your common name is not appropriately formatted for your type of certificate (wildcard certificates should use *.domain.com, for example) or you could also have disallowed characters in other fields. Please create a new CSR that only use the English alphabet and numbers 0-9. For example, if the “&” symbol is included in your Organization Name, please type out “and” instead.