Eolinius
I don't think it ("https only mode") can cause exactly the 403 error.Don't you have a setting somewhere that only allows https connections?
The site is in http
For me, this causes a security exception and I have to confirm to access it.
It looks more like a server-side ip-filter in action.
Refyia
And yes, the updated https link (after ssl was enabled on the server-side) gives the same result, 403. I just enabled ssl for https connections.