ZyXEL PLA4201 PLA4201-EU0201F Manual Do Utilizador

Chapter 6 LEDs and Troubleshooting

PLA4201 User’s Guide

The POWER and HomePlug light blink at the same time.

• You have pressed the RESET/ENCRYPT button for more than three seconds. Try setting up a 

connection again, this time pressing the RESET/ENCRYPT buttons on both devices for less than 
three seconds.

The PLA42xx Series Configuration Utility displays an error during installation.

• Make sure your computer is using Windows XP or Windows Vista (32-bit) operating system. At 

the time of writing, this is the only compatible operating system for the configuration utility.

The PLA42xx Series Configuration Utility does not display all or any of my devices.

• Inspect the LEDs on your PLA4201 and make sure that the ETHERNET and HomePlug LEDs are 

on or blinking. See 

 for troubleshooting LED related problems.

• Check all ZyxEL HomePlug AV devices on your network have the latest firmware installed. The 

latest utility cannot communicate with PLA4201s using earlier versions of the firmware. Go to 

 for instructions on installing the latest firmware.

• Check you are using the latest version utility. Earlier version utilities cannot communicate with 

PLA4201s using the latest firmware. If you do not have the latest utility, download it from the 
ZyXEL website.

• If the device is not a ZyXEL device, then the DAK and Network Name will be greyed out.
• If you are running another tool such as the Firmware Detection Tool, the Utility will not detect 

your local device.

Your powerline adapters may be connected to electrical surge protectors. Connect them to standard 
power outlets.

Your powerline adapters may be located close to large appliances such as refrigerators or air-
conditioners that cause interference with the powerline signal. Move the adapters further away 
from such appliances to reduce interference.