Hey Ric0la,
Can I just double check that you are not behind a proxy, you can check this by clicking this link
Then can you click this link again, and check that there is a green lock symbol showing in the URL bar of your browser. (Google Chrome would display a green lock symbol, other browsers differ. Please describe the result)
Finally can you also try following the steps outlined here, to add -wininet to your commandline. Could you run the launcher with this and then post up a zip file of your logs again.