DuckDNS/SSL not working

Hello,

I’m new to HA and trying to set up DuckDNS/SSL. I used this guide from 2017: https://www.splitbrain.org/blog/2017-08/10-homeassistant_duckdns_letsencrypt

I got through all of the steps just fine but when I navigated to myhome.duckdns.org:8123 it didn’t work:

This site can’t be reached. myhome.duckdns.org refused to connect.

I then redid it by removing the dehydrated folder and using the script:

sudo hassbian-config install duckdns to redo it.

Same problem.

I have no errors in the home-assistant.log, and I can access it through https://hassbian.local:8123 but not through duckdns.

I verified that I have a port forward in my router forwarding 8123 to my local ip’s 8123.

Is there any way I can figure out what’s going on?

EDIT:

In my config.yaml I didn’t know what “api_password” is so I just left it out. Otherwise i copied it exactly:

http:
ssl_certificate: /home/homeassistant/dehydrated/certs/myhome.duckdns.org/fullchain.pem
ssl_key: /home/homeassistant/dehydrated/certs/myhome.duckdns.org/privkey.pem
base_url: myhome.duckdns.org:8123

I am an idiot. My ISP’s modem was blocking traffic. Worked after I fixed that.