Spring Security Ldap remember me not working - spring

Question

I have an application which uses spring security 3.0. The application uses my company's Active directory for login. I borrowed some of the code from the examples on the net and now I am able to successfully perform a bind. But the remember-me functionality is not working. To be more specific, I am able to sign into the application but when I close the browser and open the application it is redirecting to the login page again. Can anyone please tell me what is wrong in my configuration.
Security.xml
<http path-type="regex" use-expressions="true" auto-config="true">
<form-login
login-page="/Login.html"
login-processing-url="/j_spring_security_check"
default-target-url="/home.html"
authentication-failure-url = "/Login.html?login_error=1"
/>
<logout logout-success-url="/Login.html" invalidate-session="true"
delete-cookies="JSESSIONID" />
<intercept-url pattern="\A/Login\Z" access="IS_AUTHENTICATED_ANONYMOUSLY"/>
<intercept-url pattern="\A/(?!Login).*\Z" access="isAuthenticated()" />
<remember-me key="_spring_security_remember_me" token-validity-seconds="3600" user-service-ref="ldapUserDetailsService"/>
</http>
<authentication-manager alias="authenticationManager">
<authentication-provider ref="ldapAuthProvider"/>
</authentication-manager>
<beans:bean class="org.springframework.security.ldap.authentication.LdapAuthenticationProvider" id="ldapAuthProvider">
<beans:constructor-arg ref="ldapBindAuthenticator"/>
<beans:property name="userDetailsContextMapper" ref="ldapUserDetailsContextMapper"/>
</beans:bean>
<beans:bean class="org.springframework.security.ldap.DefaultSpringSecurityContextSource" id="ldapServer">
<!-- MS Active Directory -->
<beans:constructor-arg value="ldap://hostname/DC=myCompany,DC=com"/>
<beans:property name="userDn" value="CN=user,OU=Users,DC=mycompany,DC=com"/>
<beans:property name="password" value="xxxxxx"/>
</beans:bean>
<beans:bean class="org.springframework.security.ldap.authentication.BindAuthenticator" id="ldapBindAuthenticator">
<beans:constructor-arg ref="ldapServer"/>
<beans:property name="userSearch" ref="ldapSearchBean"/>
</beans:bean>
<beans:bean class="org.springframework.security.ldap.search.FilterBasedLdapUserSearch" id="ldapSearchBean">
<beans:constructor-arg value="OU=Users"/>
<beans:constructor-arg value="(sAMAccountName={0})"/>
<beans:constructor-arg ref="ldapServer"/>
</beans:bean>
<beans:bean class="org.springframework.security.ldap.userdetails.InetOrgPersonContextMapper" id="ldapUserDetailsContextMapper"/>
<beans:bean id="ldapUserDetailsService" class="org.springframework.security.ldap.userdetails.LdapUserDetailsService">
<beans:constructor-arg index="0">
<beans:ref local="ldapSearchBean" />
</beans:constructor-arg>
</beans:bean>
<!-- Bean used for LDAP querying. -->
<beans:bean id="ldapTemplate" class="org.springframework.ldap.core.LdapTemplate">
<beans:constructor-arg ref="ldapServer" />
</beans:bean>
<beans:bean class="org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler" id="expressionHandler"/>