Hi Asabadin, You need to export "Mercedes_Bundle" along with the key from the firewall. You can use PEM format and give it a passphrase. Once exported you should be able to open it in notepad. You will see following format : -----BEGIN CERTIFICATE----- MIIC5zCCAc+gAwIBAgIBFD.. -----END CERTIFICATE----- -----BEGIN RSA PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: AES-256-CBC,A35588EF895 bPd92JfJYc407emq4 -----END RSA PRIVATE KEY----- Then open the root certificate in the notepad as well. You will NOT need private key of the root cert. Then go ahead and add root cert below RSA key. -----BEGIN CERTIFICATE----- <root cert> -----END CERTIFICATE----- So your order should be Mercedes_Bundle Mercedes_Bundle key Root cert If you have intermediate certificate in the chain, then Mercedes_Bundle Mercedes_Bundle key Intermediate Cert Root cert Once you have all in one text file, save it and import it to the firewall. While importing you will need to provide key file, this will be the same cert that we just created (that means brose same cert file twice). Passphrase would be same that you used to export. Follow following document to achieve that : How to Install a Chained Certificate Signed by a Public CA Once successfully imported, do a commit one more time. Warning should go away. Hope this helps. Thank you.
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