Password protect wp-admin

Hi, When I password protect the /wp-admin directory, the header logo on the public site does not show. I'm using Catch Everest Free. Password protect is done through hosting control panel (so is an Apache/htaccess password file) I've tried adding additional code to the /wp-admin/.htaccess file but with no success.

<Files admin-ajax.php>
Order allow,deny
Allow from all
Satisfy any
</Files>

The above stops the header from showing even when there is no password protect on the /wp-admin directory. I'v removed the password protect for now, but can you confirm what I need to do so I can password protect the /wp-admin directory and have Catch Everest still show the header? Kind Regards, Greg