HTTPS password login?

I have enabled https and using let’s encrypt and now when I access the site I need to use https, just as it should be. I get an login site, asking me for password. So I enter the password I put in the configuration.yaml file
http:
api_password: YOUR_SECRET_PASSWORD

But I can’t login. It just returns me to the login page with a text, “Unable to connect”. I have restarted the home assistant, I have rebooted the Raspbery Pi. But still same problem.
I wonder, what password is used for this login or what’ could be the problem?

What if you do each step separately. Access over HTTPS without adding the api_password. See if that still works.

What browser are you using? I saw a thread recently that reported that HA didn’t work with IE.

Got it to work, I tried to access the internal IP and not the dns name I created the certificate for.