ZyXEL Communications Corporation PLA4231 Manuel D’Utilisation

Chapter 14 LEDs and Troubleshooting

PLA4231 User’s Guide

• If that does not work, try again with both devices connected to a power strip next to each other. 

If they now connect, then the devices were not on the same electrical circuit before. 

The POWER lights on both devices blink, then many lights blink and the HomePlug light blinks 

red. 

Do not worry, the connection process is proceeding normally.

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 RESET/ENCRYPT button on 

both devices for 5 to 8 seconds, then try to reconnect, pressing the RESET/ENCRYPT button for 
0.5 to 3 seconds on both devices.

I pressed the RESET/ENCRYPT button for 5 to 8 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 RESET/ENCRYPT button for 5 to 8 seconds.

I cannot access the PLA4231 or ping any computer from the WLAN.

Make sure the wireless LAN is enabled on the PLA4231.

Make sure the wireless adapter installed on your computer is working properly.

Make sure the wireless adapter installed on your computer is IEEE 802.11 compatible and supports 
the same wireless standard as the PLA4231.

Make sure your computer (with a wireless adapter installed) is within the transmission range of the 
PLA4231.

Check that both the PLA4231 and your computer (with a wireless adapter installed) are using the 
same wireless and wireless security settings.