ppolicy asking for password change

["Sandeep A.S" <sandeep@netcontinuum.com>]

Hi

I am using openldap version 2-3-24.
I made the ppolicy overlay enabled

Whenever user logs in it ask to change the password .

After changing the password aslo next time login ,it aks to change the 
password
with the error password aged.
The following  is my standerd policy: 

dn: cn=Standard Policy,ou=Policies,dc=nc,dc=com
objectClass: top
objectClass: device
objectClass: pwdPolicy
cn: Standard Policy
pwdAttribute: userPassword
pwdMaxFailure: 3
pwdInHistory: 3
pwdMinLength: 6
pwdExpireWarning: 259200
pwdAllowUserChange: TRUE
pwdFailureCountInterval: 300
pwdGraceAuthNLimit: 1
pwdLockoutDuration: 300
pwdMustChange: FALSE
pwdCheckQuality: 1
pwdMaxAge: 10368000

my  slapd.conf  is below:

<sniped>
database  bdb
overlay         ppolicy
ppolicy_default "cn=Standard Policy,ou=Policies,dc=nc,dc=com"
ppolicy_use_lockout

Any pointer to troubleshoot this issue ?
-Thanks
Sandeep