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ZyXEL G-210H User’s Guide

Chapter 6 Troubleshooting

H A P T E R

Troubleshooting

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.

6.1 Problems Starting the ZyXEL Utility

6.2 Problem with the Link Quality

Table 13

Troubleshooting Starting ZyXEL Utility

PROBLEM

CORRECTIVE ACTION

Cannot start the

ZyXEL Wireless

LAN utility

Make sure the G-210H is properly inserted and the LED 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 G-210H under

Network Adapter

. (Steps may vary depending on the

version of Windows).
Install the G-210H 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.

Uninstall the utility from the computer, and try reinstalling it from the accompanying

CD once more. If the error persists, please contact our technical support staff.

Table 14

Troubleshooting Link Quality

PROBLEM

CORRECTIVE ACTION

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.

Содержание G-210H

Страница 1: ...ZyXEL G 210H 802 11b g Wireless USB Adapter User s Guide Version 1 0 Edition 1 1 2007...

Страница 2: ......

Страница 3: ...is subject to change without notice Trademarks ZyNOS ZyXEL Network Operating System is a registered trademark of ZyXEL Communications Inc Other trademarks mentioned in this publication are used for i...

Страница 4: ...ly approved by the party responsible for compliance could void the user s authority to operate the equipment This product has been designed for the WLAN 2 4 GHz network throughout the EC region and Sw...

Страница 5: ...conditions Note Repair or replacement as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied...

Страница 6: ...rk sales zyxel dk 45 39 55 07 07 FINLAND support zyxel fi 358 9 4780 8411 www zyxel fi ZyXEL Communications Oy Malminkaari 10 00700 Helsinki Finland sales zyxel fi 358 9 4780 8448 FRANCE info zyxel fr...

Страница 7: ...el se 46 31 744 7700 www zyxel se ZyXEL Communications A S Sj porten 4 41764 G teborg Sweden sales zyxel se 46 31 744 7701 UKRAINE support ua zyxel com 380 44 247 69 78 www ua zyxel com ZyXEL Ukraine...

Страница 8: ...ZyXEL G 210H User s Guide 8 Customer Support...

Страница 9: ...Application Overview 19 1 2 1 Station Mode 19 1 2 1 1 Infrastructure 19 1 2 1 2 Ad Hoc 20 1 3 G 210H Hardware and Utility Installation 21 1 3 1 ZyXEL Utility Icon 21 1 4 Configuration Methods 21 1 4...

Страница 10: ...1 WEP Encryption 36 4 3 1 2 WPA PSK WPA2 PSK 37 4 3 1 3 WPA WPA2 38 4 3 1 4 IEEE 802 1x 39 4 4 The Profile Screen 41 4 4 1 Adding a New Profile 43 4 5 The Adapter Screen 45 Chapter 5 47 Maintenance 4...

Страница 11: ...ZyXEL G 210H User s Guide Table of Contents 11 Setting up Your Computer s IP Address 71 Index 77...

Страница 12: ...ZyXEL G 210H User s Guide 12 Table of Contents...

Страница 13: ...Setting WPA PSK WPA2 PSK 37 Figure 20 Station Mode Security Settings WPA WPA2 38 Figure 21 Station Mode Security Setting 802 1x 40 Figure 22 Station Mode Profile 42 Figure 23 Station Mode Profile Add...

Страница 14: ...rred Networks 62 Figure 43 Windows XP SP1 Wireless Networks Preferred Networks 63 Figure 44 WPA PSK Authentication 69 Figure 45 WPA 2 with RADIUS Application Example 70 Figure 46 Windows XP Start Menu...

Страница 15: ...Table 11 Station Mode Adapter 46 Table 12 About 47 Table 13 Troubleshooting Starting ZyXEL Utility 49 Table 14 Troubleshooting Link Quality 49 Table 15 Troubleshooting Communication Problem 50 Table...

Страница 16: ...ZyXEL G 210H User s Guide 16 List of Tables...

Страница 17: ...Please refer to www zyxel com for an online glossary of networking terms and additional support documentation User Guide Feedback Help us help you E mail all User Guide related comments questions or...

Страница 18: ...ZyXEL G 210H User s Guide 18 Preface Graphics Icons Key Wireless Access Point Computer Notebook Computer Server Modem or Router Wireless Signal Internet Cloud...

Страница 19: ...the number of LED s that illuminate For more information about using the G 210H when it is not connected to a computer please see the Quick Start Guide 1 2 Application Overview This section describes...

Страница 20: ...1 Application Infrastructure 1 2 1 2 Ad Hoc To set up a small independent wireless workgroup without an AP use Ad Hoc Ad Hoc does not require an AP or a wired network Two or more wireless clients com...

Страница 21: ...ails 1 4 Configuration Methods To configure your G 210H use one of the following applications Wireless Zero Configuration WZC the Windows XP wireless configuration tool ZyXEL Utility required when you...

Страница 22: ...art All Programs ZyXEL G 210H Wireless Adapter Utility ZyXEL G 210H Wireless Adapter Software 1 4 2 Accessing the ZyXEL Utility Double click on the ZyXEL wireless LAN utility icon in the system tray t...

Страница 23: ...to a specific network or peer computer see Section 2 2 on page 25 This chapter also includes a simple example of how to configure the G 210H as an AP using the ZyXEL utility See Section 2 3 on page 31...

Страница 24: ...scriptions 3 To connect to an AP or peer computer either click an entry in the list and then click Connect or double click an entry ZyXELUSA X5 in this example 4 When you try to connect to an AP with...

Страница 25: ...this screen remain blank See Table 3 on page 34 for detailed field descriptions Figure 9 ZyXEL Utility Link Info 7 Open your Internet browser and enter http www zyxel com or the URL of any other web...

Страница 26: ...automatically searches for available wireless networks which are displayed in the Scan Info box You can also configure your profile for a wireless network that is not in the list Figure 11 ZyXEL Utili...

Страница 27: ...nects to the AP using your settings When the wireless link is established the ZyXEL utility icon in the system tray turns green and the Link Info screen displays details of the active connection 7 Mak...

Страница 28: ...ZyXEL G 210H User s Guide 28 Chapter 2 Tutorial...

Страница 29: ...ess Network The wireless network is the part in the blue circle In this wireless network devices A and B are called wireless clients The wireless clients use the access point AP to interact with other...

Страница 30: ...zed wireless devices to get the SSID In addition unauthorized wireless devices can still see the information that is sent in the wireless network 3 2 2 MAC Address Filter Every device that can use a w...

Страница 31: ...Security Settings screen of the ZyXEL utility and entering them manually as the WEP keys in the other WLAN adapter s Enter the WEP keys manually Your G 210H allows you to configure up to four 64 bit...

Страница 32: ...11i standard WPA2 IEEE 802 11i is a wireless security standard that defines stronger encryption authentication and key management than WPA Key differences between WPA 2 and WEP are improved data encry...

Страница 33: ...es the ZyXEL utility screens when the G 210H is in station mode Figure 15 ZyXEL Utility Menu Summary Station Mode The following table describes the menus Table 2 ZyXEL Utility Menu Summary Station Mod...

Страница 34: ...s associated AP MAC Address This field displays the MAC address of the AP or peer computer to which the G 210H is associated Network Type This field displays the network type Infrastructure or Ad Hoc...

Страница 35: ...ignal strength Noise Level This field displays the noise level that the G 210H is detecting while linked with the connected AP Table 3 Station Mode Link Info continued LABEL DESCRIPTION Table 4 Statio...

Страница 36: ...sion range Connect Click Connect to associate to the selected wireless device Add Click Add to create a new profile Network Type This field displays the network type Infrastructure or Ad Hoc of the wi...

Страница 37: ...Bits in the WEP field Enter either 26 hexadecimal digits in the range of A F a f and 0 9 for example 00112233445566778899AABBCC for HEX key type or Enter 13 ASCII characters case sensitive ranging fr...

Страница 38: ...WPA PSK WPA2 PSK uses a simple common password instead of user specific credentials Select the encryption type TKIP or AES for data encryption Refer to Section 3 2 3 on page 30 for more information Pr...

Страница 39: ...Enter a user name This is the user name that you or an administrator set up on a RADIUS server Password This field is not available when you select TLS in the Authentication Type field Enter the pass...

Страница 40: ...erver when your session is over Login Name Enter a user name This is the user name that you or an administrator set up on a RADIUS server Password This field is not available when you select TLS in th...

Страница 41: ...eless network settings in this screen or use one of the pre configured network profiles PEAP Inner EAP This field is only available when you select PEAP in the Authentication Type field The PEAP metho...

Страница 42: ...ty is deactivated Profile Name This is the name of the pre configured profile SSID This is the SSID of the wireless network to which the selected profile associate Connect To use and activate a previo...

Страница 43: ...New Profile The following table describes the labels in this screen Table 10 Station Mode Profile Add a New Profile LABEL DESCRIPTION Add New Profile Profile Name Enter a descriptive name in this fiel...

Страница 44: ...peer wireless computers as they are on the G 210H Refer to Section 4 3 1 on page 36 for detailed information on wireless security configuration Network Type Select Infrastructure to associate to an AP...

Страница 45: ...k the Activate Now button Otherwise click the Activate Later button You can activate only one profile at a time Note Once you activate a profile the ZyXEL utility will use that profile the next time i...

Страница 46: ...B and 802 11G depending on the network environment or 802 11B Only which will force the G 210H to broadcast in 802 11B network only 11B G Protection The factory default setting is on Auto which is the...

Страница 47: ...bout The following table describes the read only fields in this screen 5 2 Uninstalling the ZyXEL Utility Follow the steps below to remove or uninstall the ZyXEL utility from your computer 1 Click Sta...

Страница 48: ...low the steps below 1 Download the latest version of the utility from the ZyXEL web site and save the file on your computer 2 Follow the steps in Section 5 2 on page 47 to remove the current ZyXEL uti...

Страница 49: ...er Steps may vary depending on the version of Windows Install the G 210H in another computer If the error persists you may have a hardware problem In this case you should contact your local vendor The...

Страница 50: ...ociated wireless clients to use another radio channel if interference is high Make sure that the computer and the AP share the same security option and key Verify the settings in the Profile Security...

Страница 51: ...ope IEEE 802 11b 13 channels Japan IEEE 802 11g 13 channels Japan Data Rate IEEE 802 11b 11 5 5 2 1Mbps IEEE 802 11g 54 48 36 24 18 12 9 6 Mbps Modulation IEEE 802311b Direct Sequence Spread Spectrum...

Страница 52: ...tput Power IEEE 802 11b 11dBm 1 5dBm at 11Mbps IEEE 802 11g 14dBm 1dBm at 54Mbps RX Sensitivity IEEE 802 11b 11 Mbps 85 dBm IEEE 802 11g 54 Mbps 69 dBm SOFTWARE SPECIFICATIONS Device Drivers Windows 2...

Страница 53: ...A from the Microsoft web site Windows XP SP2 screen shots are shown unless otherwise specified Click the help icon in most screens move the cursor to the item that you want the information about and c...

Страница 54: ...g table for details 2 Windows XP SP2 In the Wireless Network Connection Status screen click View Wireless Networks to open the Wireless Network Connection screen Figure 32 Windows XP SP2 Wireless Netw...

Страница 55: ...ss Network Connection Properties screen Figure 33 Windows XP SP1 Wireless Network Connection Status 3 Windows XP SP2 Click Refresh network list to reload and search for available wireless devices with...

Страница 56: ...ork the Wireless Network Connection screen displays You must set the related fields in the Wireless Network Connection screen to the same security settings as the associated AP and click Connect Refer...

Страница 57: ...erred networks or Available networks list The following table describes the connection icons Security Settings When you configure the G 210H to connect to a secure network but the security settings ar...

Страница 58: ...y Enter the pre shared key or WEP key The values for the keys must be set up exactly the same on all wireless devices in the same wireless LAN Confirm network key Enter the key again for confirmation...

Страница 59: ...reen you can choose to disable or enable this feature EAP Type Select the type of EAP authentication Options are Protected EAP PEAP and Smart Card or other Certificate Properties Click this button to...

Страница 60: ...d specify a domain in the field below to have your computer connect to a server which resides only within this domain Trusted Root Certification Authorities Select a trusted certification authority fr...

Страница 61: ...my smart card Select this check box to use the smart card for authentication Use a certificate on this computer Select this check box to use a certificate on your computer for authentication Validate...

Страница 62: ...ws XP SP1 In the Wireless Network Connection Status screen click Properties and the Wireless Networks tab to open the screen as shown Use a different user name for the connection Select the check box...

Страница 63: ...new network the new network is added in the Preferred networks table automatically Select a network and click Move up or Move down to change it s order click Remove to delete it or click Properties t...

Страница 64: ...ZyXEL G 210H User s Guide 64 Appendix B...

Страница 65: ...certificate authority CA A certificate also called digital IDs can be used to authenticate users and a CA issues certificates and guarantees the identity of each certificate owner EAP MD5 Message Dige...

Страница 66: ...ient identity is protected For client authentication EAP TTLS supports EAP methods and legacy authentication methods such as PAP CHAP MS CHAP and MS CHAP v2 PEAP Protected EAP Like EAP TTLS server sid...

Страница 67: ...red into each access point wireless gateway and wireless client As long as the passwords match a wireless client will be granted access to a WLAN If the AP or the wireless clients do not support WPA2...

Страница 68: ...is more difficult to decrypt data on a Wi Fi network than WEP and difficult for an intruder to break into the network The encryption mechanisms used for WPA 2 and WPA 2 PSK are the same The only diff...

Страница 69: ...44 WPA PSK Authentication WPA 2 with RADIUS Application Example You need the IP address of the RADIUS server its port number default is 1812 and the RADIUS shared secret A WPA 2 application example wi...

Страница 70: ...onfigure these security features Table 25 Wireless Security Relational Matrix AUTHENTICATION METHOD KEY MANAGEMENT PROTOCOL ENCRYPTION METHOD ENTER MANUAL KEY IEEE 802 1X Open None No Disable Enable w...

Страница 71: ...lled Windows 2000 and XP usually include TCP IP Configure the TCP IP settings in order to communicate with your network Windows 2000 XP 1 For Windows XP click start Control Panel In Windows 2000 NT cl...

Страница 72: ...e 47 Windows XP Control Panel 3 Right click Local Area Connection and then click Properties Figure 48 Windows XP Control Panel Network Connections Properties 4 Select Internet Protocol TCP IP under th...

Страница 73: ...Internet Protocol TCP IP Properties window opens the General tab in Windows XP If you have a dynamic IP address click Obtain an IP address automatically If you have a static IP address click Use the f...

Страница 74: ...he above two steps for each IP address you want to add Configure additional default gateways in the IP Settings tab by clicking Add in Default gateways In TCP IP Gateway Address type the IP address of...

Страница 75: ...them Figure 51 Windows XP Internet Protocol TCP IP Properties 8 Click OK to close the Internet Protocol TCP IP Properties window 9 Click OK to close the Local Area Connection Properties window 10Resta...

Страница 76: ...ZyXEL G 210H User s Guide 76 Appendix D...

Страница 77: ...sage authentication code Protocol 32 Certificate Authority 66 Certifications viewing 4 Channel 34 36 44 channel 51 Configuration current 34 Configuration method 21 configuration method Wireless Zero C...

Страница 78: ...49 RADIUS server 32 Related Documentation 17 S Security data encryption 31 security 52 Security Parameters 70 Signal strength 34 36 Site survey 35 scan 36 security settings 36 SSID 29 34 35 hide 30 Su...

Страница 79: ...nt 29 Wireless frequency 44 Wireless LAN introduction 29 overview 29 security 30 Wireless LAN WLAN 29 Wireless network 29 wireless standard 51 Wireless station mode configuration 33 WLAN Security para...

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