WHMCS redirecting non-wp-loggedin users

Testing WHMCS WP integration on a test-site. But getting some behaviour I do not want:
When a user is not logged in into WP, then he does not see the usual WHMC page that I see as a logged in user. He is being redirected to some other page.
Is this default behaviour? Of is this some setting?
(note: this site is not yet available for outside world to see. Final website will be another domain).