Must do the following on each MoCA 2.5 adapter.
1. Access the GUI and select "Security Settings" on the left menu.
2. Select the "Enhanced Privacy Enabled" option.
3. Use the existing password or change as desired.
3. Click on "Save"
Once the option is enabled on each adapter, ALL adapters must be power cycled.
You can then press the MPS button for 2-3 seconds on each adapter within 2 minutes and they will create and join a secured network