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ZyXEL Communications ZyAIR G-110 4.3Problem with the Link Status, Table 4-3Troubleshooting Link Status, Table 4-2Troubleshooting Communication Problems

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ZyAIR G-110 User’s Guide

Table 4-2 Troubleshooting Communication Problems

PROBLEM

CORRECTIVE ACTION

B.Ad-HocVerify that the peer computer(s) is turned on.

Make sure the ZyAIR and the peer computer(s) are using the same SSID and channel.

Use another radio channel if interference is high.

Make sure that the ZyAIR and the AP share the same WEP key and authentication mode. Verify the settings in the Security Configuration screens.

4.3Problem with the Link Status

Table 4-3 Troubleshooting Link Status

PROBLEM	CORRECTIVE ACTION

The link quality and/or signal	Move your computer closer to the AP or the peer computer(s) within the
strength is poor all the time.	transmission range.
	There is too much radio interference (for example microwave or another
	AP using the same channel) around your wireless network. Relocate or
	reduce the radio interference.
The Site Survey screen	Move your computer closer to the AP or peer computer(s) within the
displays all entries with low	transmission range.
signal.	There is too much radio interference (for example metal structure,
	microwave or another AP using the same channel) around your wireless
	network. Relocate or reduce the radio interference.

4-2	Troubleshooting

Contents

Page Copyright ZyXEL Limited Warranty Information for Canadian Users Federal Communications Commission (FCC) Interference Statement Page Customer Support Page Table of Contents Index List of Figures List of Tables Preface Graphics Icons Key Getting Started 1.1About Your ZyAIR 1.2ZyAIR Hardware and Utility Installation 1.3Disable Windows XP Wireless LAN Configuration Tool Figure 1-1Windows XP: System Tray Icon From the Wireless Network Connection Status Screen Step Figure 1-2Windows XP: System Tray Icon Start Page 1.4Accessing the ZyAIR Utility Table 1-1ZyAIR Utility: System Tray Icon Page Using the ZyAIR Utility 2.1About Wireless LAN Network 2.1.1 Channel 2.1.2SSID 2.1.3 Transfer Rate 2.2.1 Ad-Hoc(IBSS) 2.2.2Infrastructure 2.3Roaming 2.4Viewing Current Configuration Figure 2-5ZyAIR Utility: Link Info Table 2-1ZyAIR Utility: Link Info 2.4.1 Common Screen Command Buttons 2.5Configuring the ZyAIR Wireless Parameters Figure 2-6ZyAIR Utility: Profile: Configuration Table 2-3ZyAIR Utility: Profile: Configuration Apply Changes Figure 2-7Odyssey Client Add this trusted server to the database 2.6Network Configuration Profile Setting 2.6.1 Saving the Current Setting to a Profile 2.6.2 Using a Pre-configuredProfile 2.6.3 Deleting a Profile 2.7The Site Survey Screen 2.7.1 Connecting to a Network 2.8About Wireless LAN Security 2.8.1 Data Encryption with WEP 2.8.2 Authentication Mode 2.8.3 IEEE 2.8.4 WPA 2.8.5 WPA-PSKApplication Example 2.8.6 WPA with RADIUS Application Example 2.9Configuring Wireless Security on the ZyAIR 2.9.1 WEP Encryption Figure 2-14ZyAIR Utility: Security Configuration: WEP Table 2-5ZyAIR Utility: Security Configuration: WEP 2.9.2 WPA-PSK 2.9.3 WPA Figure 2-16ZyAIR Utility: Security Configuration: WPA Table 2-7ZyAIR Utility: Security Configuration: WPA 2.9.4 IEEE802.1x Figure 2-17ZyAIR Utility: Security Configuration: Table 2-8ZyAIR Utility: Security Configuration: 2.10 The About Screen Figure 2-18ZyAIR Utility: About Table 2-9ZyAIR Utility: About Page Maintenance 3.1Uninstalling the ZyAIR Utility 3.2Upgrading the ZyAIR Utility Page Troubleshooting 4.1Problems Starting the ZyAIR Utility Program 4.2Problems Communicating With Other Computers 4.3Problem with the Link Status Appendix A Types of EAP Authentication LEAP Comparison of EAP Authentication Types Appendix B Product Specifications Page Page Page Index