We have an SSRS 2014 already in production and we want now use a secure site by linking it to a certificate (URL like "https://..."). So now the URL is fully qualified domain name(FQDN).
We can access correctly to the report manager with this https URL. We have to register to access with the Windows account.
The bug we have is that when we navigate, sometimes, we pass to an http page. Each time that we pass from an https to an http page, the browser (IE) ask to register again.
If I clic on a tab on the left pane (for example in Security), SSRS ask me to reconnect and jump to an http page. This is a real problem for us.