ZyXEL PLA-491 User Manual download pdf (Page 72)

Chapter 7 LEDs and Troubleshooting

PLA-4xx Series User’s Guide

V The ETHERNET light does not turn on.

1 Check the hardware connections. See the Quick Start Guide.

2 Inspect your cables for damage. Contact the vendor to replace any damaged cables.

3 Check the Ethernet adapter on your computer and make sure it’s enabled and working

properly.

4 If the PLA-4xx is connected to an Ethernet switch or router, make sure the device is

working correctly, and that the LAN network is working and configured correctly as

well.

V The HomePlug light does not turn on.

1 Check all PLA-4xxs on your network have the latest firmware installed. PLA-4xxs with

the latest firmware cannot communicate with PLA-4xxs using earlier versions of the

firmware. Go to Section 5.4 on page 48 for instructions on installing the latest firmware.

2 Use the PLA-4xx Series Configuration Utility to detect all other HomePlug devices on

your powerline network. Make sure that the network name (sometimes called the

network password) is the same on all of your powerline adapters. See Section 5.3 on

page 47 for instructions on checking the network name.

3 Check the DAK password and MAC address for all powerline adapters are typed

correctly in the utility. See Section 5.3 on page 47 for instructions on checking the DAK

and MAC address.

4 Make sure that all your powerline adapters are HomePlug AV compliant. Check the

package it came in or ask your vendor. This PLA-4xx can not detect earlier versions of

HomePlug powerline adapters such as HomePlug 1.0 or 1.0.1. (Although they can

coexist on the same electrical wiring without interfering with each other.)

5 Make sure that the powerline adapters on your network are all on the same electrical

wiring. Connect another powerline adapter into an outlet close to your PLA-4xx’s power

outlet. They are probably now on the same electrical wiring. Check the HomePlug

light. If it now lights up your powerline adapter was probably previously on separate

electrical wiring. Ask an electrician for more information on the electrical wiring in your

building.

6 If your powerline network is using coaxial cable, check all powerline adapters are on the

same coaxial cable.

7 If your powerline network is using electrical wiring (not coaxial cable), check you do not

have a power meter between powerline adapters. Powerline signals cannot pass this.

V The POWER and HomePlug light blink at the same time.

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ZyXEL PLA-491 User Manual Page 72