On Networks PL500 Installation Guide - Manual (Page 3)

3
Button Descriptions
Item Description
Factory
Reset button Press the Factory Reset button for 1
second, then release it to return the
Powerline adapter to its factory
default settings.
Security
button After you plug in your new Powerline
Network AV adapter, press the
Security button for 2 seconds. Then
press the Security button on one of
the other adapters in your existing
network for 2 seconds. Both buttons
must be pressed within 2 minutes.
Ethernet
Factory
Security
button
Reset
port
button