Give a 404 for certain IP ranges when they try to login

404 when logging in

    <Directory "/path/to/wordpress/">
        AllowOverride AuthConfig                             
        Options ExecCGI FollowSymLinks
        Order allow,deny
        Allow from all
        <IfModule mod_rewrite.c>
                RewriteEngine On

                RewriteCond %{REMOTE_ADDR} ^188.143.234. [OR]
                RewriteCond %{REMOTE_ADDR} ^188.143.235.
                RewriteRule ^wp-login.php / [R=404]

                RewriteBase /
                RewriteCond %{REQUEST_FILENAME} !-f
                RewriteCond %{REQUEST_FILENAME} !-d
                RewriteRule . /index.php [L]

        </IfModule>
   </Directory>