User Password change fails in OWA with this error: Your password couldn't be changed. Make sure the old password you typed is correct and that the new password meets the minimum security requirements.
We are migrating from Exchange 2007 to Exchange 2013. Have mailboxes in both environments. OWA 2007 password changes succeed (user mailbox is still in Exchange 2007). When the user mailbox is moved to Exchange 2013, password changes fail with the above error.
We have the Exch 2013 servers are on Windows 2012 and we are running Exch 2013 CU3. We have made changes to the Default Role Assignment Policy to prevent users from changing Contact information and setting user photos, etc. We are not exactly sure when user password changes stopped working, or even if they ever did work, although we recently installed our Prod Exch 2013 servers alongside our 2007 servers without any RBAC delegation implemented and a quick test of a user password change was successful.
I reversed all the changes to the Default Role Assignment Policy but the password change still fails.