ZyXEL Communications PLA-4 Series User Manual page 72

Chapter 7 LEDs and Troubleshooting
The POWER lights on both devices finished blinking, but only one device's
HomePlug light is on.
One device may have connected to a third powerline device. To check device A is connected
to device B and not another device, disconnect device B from its power source. Device A's
HomePlug ( ) light will turn off if the connection is with Device B. Press the ENCRYPT
button on both devices for more than 10 seconds, then try to reconnect, pressing the
ENCRYPT button for less than 3 seconds on both devices.
I pressed the ENCRYPT button for more than 10 seconds, but the HomePlug
light is still on.
The HomePlug light is on, indicating it is still connected to another powerline device. Try
again, pressing the ENCRYPT button for more than 10 seconds.
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PLA-4xx Series User's Guide