Rename and new SSL certs not working

I am hoping someone might be able to point me in the right direction. My current HA install is using Let’s Encrypt certs and is accessible using a domain I have. As the renewal for my LE certs fast approaches, I was purchasing a cert for work and decide to grab a 3 year SSL cert to use for my HA installation. I grabbed the cert from Namecheap for $20 for the 3 years.

Current Configuration

http:
  base_url: https://myhome.abcname.com:8123
  ssl_certificate: /ssl/myhome.abcname.com-chain.pem
  ssl_key: /ssl/myhome.abcname.com-key.pem

The certificate zip file from Namecheap had the following files. Both files are text format so I believe they are PEM format.

  1. myhome_xyzname_com.ca-bundle
  2. myhome_xyzname_com.crt

I have uploaded the files to the ssl folder and updated configuration.yaml as shown below.

base_url: https://myhome.xyzname.com:8123
ssl_certificate: /ssl/myhome.xyzname.com.ca-bundle.pem
ssl_key: /ssl/myhome.xyzname.com.priv.pem

NOTE: New certificate files and the name URL in the base_url field.

After a reboot of the HA host, I try to access HA using the new URL -> https://myhome.xyzname.com:8123

I keep getting “ERR Connection Refused” in the browser. I have ping the name name and get the correct IP address returned.

Can anyone suggest a solution or some troubleshooting steps?
Thanks
Anthony

You might read this :

https://www.namecheap.com/support/knowledgebase/article.aspx/9474/69/how-do-i-create-a-pem-file-from-the-certificates-i-received-from-you

Thank you Francis. I did not realise I had to merge the certificate file and the CA chain myself.