If you didn't open up access for your server on port 443, you'll get an error message like this: Failed authorization procedure. Select 2 Automatically use a temporary webserver (standalone)
I have a dynamic hostname from, which I use to access my home network. Dynamic hostname from, which I'll use for this setup.I just discovered Let's Encrypt and wanted to get myself a free cert for use with my SABnzbd+ installation at home.