Users may face error when trying to reset their mailbox password from OWA. The error reported will be “The password you entered doesn’t meet the minimum security requirements“, even-though you have used a complex password.
This can be resolved by making a small modification in your Domain Controller’s Default Domain Policy. By default, the ‘Minimum Password Age‘ policy will be set for 1 days. This should be changed to 0 days instead. Minimum password age actually determines the period of time (in days) that a password must be used before the user can change it.
- Launch Group Policy Management [gpmc.msc]
- Select the Default Domain Policy and edit the same to obtain the Group Policy Management Editor
- Navigate to Computer Configuration -> Policies -> Windows Settings -> Security Settings -> Account Policy -> Password Policy -> Minimum password age
- Change the number of days to 0 and save the settings
- Update the group policy
Now check and confirm from OWA that the password reset is successful.