Trying to setup Smartthings integration

Hello all, was hoping there would be someone out there that could help me. i am trying to do the SmartThings Integration but keep getting an error about the “Base URL”. i will explain my setup and perhaps someone way smarter than me can assist

Home Assistant is a VM on my ESXi. up and running I have it exposed to the internet using a reverse proxy at https:// nottherealname. subdomainname. duckdns .org i am NOT using the duckdns addon in the addon store. My letsencrypt is running in a docker on another VM and in that docker are my keys

my configuration.yaml has the http uncommented out per the instructions and i have the base url matching what i use to access the server off network. i see others posting the path to the keys in the configuration.yaml file as well and they are always local files. my key files are on another machine per my setup explained above. is that why i am still getting the base URL error when trying to setup the smartthings integration? how can i fix my issue?

so sorry for the long post

Did you try these things?

What reverse proxy are you running? What is that config?

What was the output of the webhook command you ran from Home Assistant manually (in the troubleshooting guide)?

I am using Letsencrypt and its on another machine running in a docker. i can access the Home assistant using the https link that is i put in my configuration.yaml file and the ssl checker says the link is good
base URL

Ok. Have you tried any of the steps in that link? (It should jump to a troubleshooting section)