https://localhost works but https://mydomain.com does not (no replies)

I am using WAMPSERVER 3.1.0. I followed this tutorial to create an ssl certificate and use https on my site. I purchased a Godaddy certificate and it works with [localhost] but does not work with [mydomain.com]. It's like it cannot find it, however [mydomain.com] does work.

Any help would be apprecaited!