SSL certificate for Sophos User Portal

Question

I have successfully installed a p12 certificate on the Sophos firewall. 
 I followed this guide: https://www.leibling.de/sophos-xg-eigenes-oeffentliches-zertifikat-verwenden/ 
 Looks like i can't activate the new certificate under Administration->Admin Settings->Port Settings for Admin Console->Certificate. 
 The dropdown box shows only the self-Signed certificate but not my new p12 certificate. 
 Any ideas why the certificate is missing? 
 Best Regards 
 Roger

Roger Wolf · Accepted Answer

I was able to resolve the issue. 
 The reason why i was not able to pick the new installed certificate under Administration->Admin Settings->Port Settings for Admin Console->Certificate was caused by the fact that i missed to install the root CA and the Issuing CA for the new installed CA. 
 This was casued because there was already a Root CA from my certificate issuer.

Ronak Sheth · Answer

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