Unable to login to admin (www issue)

[HDG]

I can login to admin fine if HTTP_SERVER etc on admin/includes/configure.php is set to http://domain.com

But if I change it to http://www.domain.com, the admin login doesn't work. I enter the correct user and pass but it simply returns me to the login page. Any idea how to fix this? Thanks.

[Kim]

Please post your admin/includes/configure.php without your password.

[HDG]

define('HTTP_SERVER', 'http://domain.com');
define('HTTPS_SERVER', 'https://domain.com');
define('HTTP_CATALOG_SERVER', 'http://domain.com');
define('HTTPS_CATALOG_SERVER', 'https://domain.com');

// Use secure webserver for catalog module and/or admin areas?
define('ENABLE_SSL_CATALOG', 'false');
define('ENABLE_SSL_ADMIN', 'false');

// NOTE: be sure to leave the trailing '/' at the end of these lines if you make changes!
// * DIR_WS_* = Webserver directories (virtual/URL)
// these paths are relative to top of your webspace ... (ie: under the public_html or httpdocs folder)
define('DIR_WS_ADMIN', '/cart/admin/');
define('DIR_WS_CATALOG', '/cart/');
define('DIR_WS_HTTPS_ADMIN', '/cart/admin/');
define('DIR_WS_HTTPS_CATALOG', '/cart/');

define('DIR_WS_IMAGES', 'images/');
define('DIR_WS_ICONS', DIR_WS_IMAGES . 'icons/');
define('DIR_WS_CATALOG_IMAGES', HTTP_CATALOG_SERVER . DIR_WS_CATALOG . 'images/');
define('DIR_WS_CATALOG_TEMPLATE', HTTP_CATALOG_SERVER . DIR_WS_CATALOG . 'includes/templates/');
define('DIR_WS_INCLUDES', 'includes/');
define('DIR_WS_BOXES', DIR_WS_INCLUDES . 'boxes/');
define('DIR_WS_FUNCTIONS', DIR_WS_INCLUDES . 'functions/');
define('DIR_WS_CLASSES', DIR_WS_INCLUDES . 'classes/');
define('DIR_WS_MODULES', DIR_WS_INCLUDES . 'modules/');
define('DIR_WS_LANGUAGES', DIR_WS_INCLUDES . 'languages/'); define('DIR_WS_CATALOG_LANGUAGES', HTTP_CATALOG_SERVER . DIR_WS_CATALOG . 'includes/languages/');

// * DIR_FS_* = Filesystem directories (local/physical)
//the following path is a COMPLETE path to your Zen Cart files. eg: /var/www/vhost/accountname/public_html/store/
define('DIR_FS_ADMIN', '/home/user/public_html/cart/admin/');
define('DIR_FS_CATALOG', '/home/user/public_html/cart/');

define('DIR_FS_CATALOG_LANGUAGES', DIR_FS_CATALOG . 'includes/languages/');
define('DIR_FS_CATALOG_IMAGES', DIR_FS_CATALOG . 'images/');
define('DIR_FS_CATALOG_MODULES', DIR_FS_CATALOG . 'includes/modules/');
define('DIR_FS_CATALOG_TEMPLATES', DIR_FS_CATALOG . 'includes/templates/');
define('DIR_FS_BACKUP', DIR_FS_ADMIN . 'backups/');
define('DIR_FS_EMAIL_TEMPLATES', DIR_FS_CATALOG . 'email/');
define('DIR_FS_DOWNLOAD', DIR_FS_CATALOG . 'download/');

// define our database connection
define('DB_TYPE', 'mysql');
define('DB_PREFIX', 'zen_');
define('DB_SERVER', 'localhost');
define('DB_SERVER_USERNAME', 'xxxx');
define('DB_SERVER_PASSWORD', 'xxxxxx');
define('DB_DATABASE', 'user_zc1');
define('USE_PCONNECT', 'false'); // use persistent connections?
define('STORE_SESSIONS', 'db'); // use 'db' for best support, or '' for file-based storage

// The next 2 "defines" are for SQL cache support.
// For SQL_CACHE_METHOD, you can select from: none, database, or file
// If you choose "file", then you need to set the DIR_FS_SQL_CACHE to a directory where your apache
// or webserver user has write privileges (chmod 666 or 777). We recommend using the "cache" folder inside the Zen Cart folder
// ie: /path/to/your/webspace/public_html/zen/cache -- leave no trailing slash
define('SQL_CACHE_METHOD', 'database');
define('DIR_FS_SQL_CACHE', '/home/user/public_html/cart/cache');

The above works fine.
(Removed some personal data)

But if I change (the first 4 lines):

define('HTTP_SERVER', 'http://domain.com');

to:

define('HTTP_SERVER', 'http://www.domain.com');

It creates the problem I described.

[Ajeh]

IS your secure certificate for www.your_domain.com or for your_domain.com ...

[HDG]

There is a certificate for both.

[Kim]

Then it is not installed properly - talk to your host.

[HDG]

The certificate? I can manage that via Cpanel. What do I need to correct?