ZyXEL Communications Corporation AG120 Manuel D’Utilisation

ZyXEL AG-120 User’s Guide

Chapter 6 Troubleshooting

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

Table 15   Troubleshooting Starting ZyXEL Utility  

Cannot start the 

ZyXEL Wireless 

LAN utility

Make sure the AG-120 is properly inserted and the LED(s) is on. Refer to the 

Quick Start Guide for the LED descriptions.
Use the Device Manager to check for possible hardware conflicts. Click Start, 

Settings, Control Panel, System, Hardware and Device Manager. Verify the 

status of the AG-120 under Network Adapter. (Steps may vary depending on the 

version of Windows). 
Install the AG-120 in another computer.
If the error persists, you may have a hardware problem. In this case, you should 

contact your local vendor.

The ZyXEL utility 

icon does not 

display.

If you install the Funk Odyssey Client software on the computer, uninstall (remove) 

both the Funk Odyssey Client software and ZyXEL utility, and then install the 

ZyXEL utility again after restarting the computer.

Table 16   Troubleshooting Link Quality 

The link quality 

and/or signal 

strength is poor all 

the time.

Search and connect to another AP with a better link quality using the Site Survey 

screen.
Move your computer closer to the AP or the peer computer(s) within the 

transmission range.
There may be too much radio interference (for example microwave or another AP 

using the same channel) around your wireless network. Lower the output power of 

each AP.
Make sure there are not too many wireless stations connected to a wireless 

network.