Restricting access to the WordPress login page using Static IP Address(es). Code caters for redirect loops with the inclusion of error pages.

static_ip_htaccess

ErrorDocument 401 /your-site's-path/index.php?error=404
ErrorDocument 403 /your-site's-path/index.php?error=404

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_URI} ^(.*)?wp-login\.php(.*)$ [OR]
RewriteCond %{REQUEST_URI} ^(.*)?wp-admin$
RewriteCond %{REMOTE_ADDR} !^12\.345\.678\.90
RewriteCond %{REMOTE_ADDR} !^IP Address InsertTwo$
RewriteCond %{REMOTE_ADDR} !^IP Address InsertThree$
RewriteRule ^(.*)$ - [R=403,L]
</IfModule>

thank you bro