Remove index.php from URL

Have you removed the $config['index_page'] = 'index.php'; to $config['index_page'] = '';

Also I have a whole list of different htaccess you could try here Codeigniter Htaccess Github

Setting $config['index_page'] in the config.php file worked. Thank you!

The list of different htaccess will definitely come in handy. Thank you for the reference.