wp-admin redirect login error

Hello,

The front end of my WP site is working fine. However when I go to the back end URL, I am getting a 404 error, with a really long redirect URL.

This is the redirect URL that I see:

/wp-login.php?redirect_to=http%3A%2F%2Fdev.jokefire.com%2Fwp-admin%2F&reauth=1'

This is the error that shows in the web browser:

Not Found

The requested URL /wp-login.php was not found on this server.`

I find that if I log into the front end of the site using the admin credentials, and then manually surf to the /wp-admin URL, I can then access the back-end. However the 404 on hitting the back end URL before logging in is annoying me to no end. This 404 simply must be killed!! 😉

This is my wp-config.php file:

<?php
define('DB_NAME', 'jokefire');
define('DB_USER', ‘removed’);
define('DB_PASSWORD', ‘removed’);
define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');
define('AUTH_KEY',         ‘removed’);
define('SECURE_AUTH_KEY',  ‘removed’);
define('LOGGED_IN_KEY',    ‘removed’);
define('NONCE_KEY',        ‘removed’);
define('AUTH_SALT',         ‘removed’);
define('SECURE_AUTH_SALT', ‘removed’');
define('LOGGED_IN_SALT',   ' ‘removed’');
define('NONCE_SALT',       ' ‘removed');
$table_prefix  = 'wp_';
define('WPLANG', '');
define('WP_DEBUG', false);
if ( !defined('ABSPATH') )
require_once(ABSPATH . 'wp-settings.php');
?>

And this is my .htaccess file:

<files wp-config.php>
Require all denied
</files>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^wp-admin/includes/ - [F,L]
RewriteRule !^wp-includes/ - [S=3]
RewriteRule ^wp-includes/[^/]+\.php$ - [F,L]
RewriteRule ^wp-includes/js/tinymce/langs/.+\.php - [F,L]
RewriteRule ^wp-includes/theme-compat/ - [F,L]
</IfModule>
RewriteEngine On
RewriteBase /
<Files .*>
</Files>
RewriteRule ^(?:application|modules|system)\b.* index.php/$0 [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php/$0 [PT]
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
<files *.html>
SetOutputFilter DEFLATE
</files>

I’m not seeing any activity in the apache logs (access or error) when I reload the admin page.

Can someone please help me resolve this issue?

Thanks