Protection rules: Comments / How to set for only members read and write

Hi There

I want that only the loggued members can read and write comments but I can't figure it out how to set it up with Membership.

In Protection rules / Comments & Tags I have:

Comments: No Access => Everyone

Comments: Read Only Access => ×Member

Comments: Read and Write Access => ×Member

But with those settings Everyone can read the comments on articles. There is no protection.

Is it possible to allow only member to read and write? I mean visitors can't see comments at all.

Thanks in advance!

Best regards