HostKro servers have WordPress brute force protection, so you may see a POPUP Authorization box to provide "admin" as your username and password, so the comment will be published.
However you can easily bypass that. Just add the following lines in the ".htaccess" under the public_html folder.
<FilesMatch "wp-comments-post.php">
AuthType None
require all granted
</FilesMatch>
This will do the job! No more pop-up authorization box for comment!
