Wd syncing

Once I sync up a couple of livewire devices, do they remember the sync even after power is interrupted? Is there any indication on the devices that they are sunk and are now a private network? Seems like they could use an LED or something to indicate that they are sunk. Do I eliminate the sync by doing a master reset on the bottom?

So much to learn… so little time!!

There is a LED that indicates when they are synched and there is also a reset button that requires a paperclip to press on the bottom of each device.