Chapter 27 Troubleshooting; Using Leds To Diagnose Problems; The Power Led; The Lan Port Leds - ZyXEL Communications ZYAIR G-4100 User Manual

This chapter covers potential problems and possible remedies. After each problem
description, some instructions are provided to help you to diagnose and to solve the problem.

27.1 Using LEDs to Diagnose Problems

The LEDs are useful aides for finding possible problem causes.

27.1.1 The Power LED

The PWR LED on the front panel does not light up.
STEPS
1 Check the connection from the ZyAIR to the power source. Make sure you are using the supplied
power supply. Refer to the product specifications.
2 Make sure the power source is turned on and that the ZyAIR is receiving sufficient power.
3 If these steps fail to correct the problem, contact your local distributor for assistance.

27.1.2 The LAN Port LEDs

None of the LEDs for the LAN port(s) light up when connected to an Ethernet device.
STEPS
1 Make sure the ZyAIR is turned on.
2 Verify that the attached device(s) is turned on and properly connected to the ZyAIR.
3 Verify that the Ethernet cable length does not exceed 100 meters.
4 Make sure the network adapters are working on the attached device(s).

27.1.3 The WAN Port LED

The LED for the WAN port does not light up when connected to an Ethernet device.
STEPS
1 Make sure you connect your cable or DSL modem or router to this port using the Ethernet cable that
came with your cable or DSL modem or router.
2 Verify that the attached device is turned on and properly connected to the ZyAIR.
3 Verify that the Ethernet cable length does not exceed 100 meters.

27.2 Web Configurator

I cannot access the web configurator.
Troubleshooting

Table 27-1 Troubleshooting Power LED

CORRECTIVE ACTION

Table 27-2 Troubleshooting LAN LEDs

CORRECTIVE ACTION

Table 27-3 Troubleshooting WAN LEDs

CORRECTIVE ACTION
ZyAIR G-4100 User's Guide
Chapter 27
Troubleshooting
27-1