We are running Exchange 2010, SP1. We have a DAG setup, and have failoved over the CAS server to our secondary CAS server. Since this failover, when our users log into OWA, and select the Change Password link, the change password dialog box doesn't appear. It works with the OWA light version. Compared IIS settings between the two CAS servers, and aren't able to find the discrepancy. Also, on both servers there is no regedit for the ChangeExpiredPasswordEnabled value.
Not sure what we are missing.