404 error from codeigniter when hosted to server (tried every possible conditions)

Why you need a page ending with .htm on Codeigniter? You are working on Php  

PHP Code:

public function index()
    {
        $this->load->view('YOUR_VIEW/home');
    }
    public function loginpg(){
        $this->load->view('YOUR_VIEW/login');
    }
}
?>

then in the route please try: 

$route['the-url-on-the-browser(name-of-the-file-in-your-view)'] = 'welcome/-the-name-of-the-controller'; 

worked bro thanks