Problem with Internet Explorer credentials

Hello,

I'm experiencing problems with internet explorer credentials and one sap page. If I use firefox I can use basic authentication. When I use Internet explorer and I activate the same (basic authentication) internet explorer opens a blank page that you can use to browse normally but the required webpage isn't available.

If I use other authentication types for internet explorer it works but always prompts for credentials and doesn't work. It happens for two different web pages.

Any Idea: Any IE options that should be configured properly ? It's a bug ?

I'm using Windows 10, internet explorer 11 ad latest Remote Desktop Manager version (I've upgraded also to latest beta if it solves the problem). I've activated compatibility mode for those web sites and also added them as trusted sites too.

Result has been the same. It doesn't work.

Any idea??

Best regards,
Jose