Managed to Fix this by ensuring the following is in the wp-config
define( 'WP_HOME', 'https://www.domain.com' );
define( 'WP_SITEURL', 'https://www.domain.com' );
define( 'ADMIN_COOKIE_PATH', '/' );
define( 'COOKIE_DOMAIN', '' );
define( 'COOKIEPATH', '' );
define( 'SITECOOKIEPATH', '' );
define('NOBLOGREDIRECT', 'https://www.domain.com');