Strange. I tried it with my blog and it said there was no feed https://kevincox.ca. I definitely have a alternate link tag set up.
What it's worth my own RSS reader also fails to find any feeds from your site because my parser expects the link type to be quoted with either single or double quotes. Not sure what the offical specs say though.
type="application/atom+xml"
This is a valid unquoted attribute. So it looks like a bug in your reader (and quite possibly the linked service as well)