Zend certified PHP/Magento developer

Changes in an active directory group object not reflecting promptly in user objects

If a group membership change is made to an Active Directory group, how long should it take for this change to be reflected on the user object?

Currently, I am working with a single domain controller (so there are no replication issues). And when I remove a user from a group, I am having to put in waits of up to 45 seconds. Does it really take Active Directory this long to update the state of the user object?