ZyXEL Communications Corporation PLA4231 Manuel D’Utilisation
Chapter 14 LEDs and Troubleshooting
PLA4231 User’s Guide
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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.
conditioners that cause interference with the powerline signal. Move the adapters further away
from such appliances to reduce interference.
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Your powerline adapters may be placed close to electrical devices such as electrical insect-killers
which produce radio waves. These may interfere with the powerline signals. Move the adapters
further away from such electrical devices.
which produce radio waves. These may interfere with the powerline signals. Move the adapters
further away from such electrical devices.
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Your wiring may be old and/or low quality or with a long wiring path.
14.5 RESET/ENCRYPT Button Problems
This section applies only to PLA4231s with the RESET/ENCRYPT button.
The HomePlug light is already on, but I haven’t pressed the RESET/ENCRYPT button yet.
Your device has already connected to another powerline device. Press the RESET/ENCRYPT
button for 5 to 8 seconds to release the connection.
button for 5 to 8 seconds to release the connection.
The POWER light does not blink when I press the RESET/ENCRYPT button.
• Check the device is on.
• Press the RESET/ENCRYPT button again, making certain you have pressed the button for 0.5 to
• Press the RESET/ENCRYPT button again, making certain you have pressed the button for 0.5 to
3 seconds.
• The POWER light on some powerline devices do not blink as part of the ENCRYPT process. Check
your powerline device is a PLA4231.
• For PLA4231, you cannot use the RESET/ENCRYPT button when it is in Low Power mode.
Connect the PLA4231 to a computer/router then try again.
The POWER light blinks two times quickly then pauses, before repeating.
The ENCRYPT process has failed. Press the RESET/ENCRYPT button on both devices for 5 to 8
seconds, then try to reconnect.
seconds, then try to reconnect.
The POWER lights on both devices blink when I press the RESET/ENCRYPT buttons, but the
HomePlug light does not turn on.
• Ensure you have pressed the RESET/ENCRYPT button on both devices.
• Wait for about a minute while the devices set up a connection.
• Wait for about a minute while the devices set up a connection.