ZyXEL Communications N220 - V1.0 Guide de l'utilisateur Page 92
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- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
Chapter 7 Troubleshooting
N220 User’s Guide
92
7.2 Accessing the ZyXEL Utility
I cannot access the ZyXEL Utility
1 Make sure the N220 is properly inserted and the LEDs are on. Refer to the Quick
Start Guide for information on how to properly connect the N220.
2 Use the Device Manager to check for possible hardware conflicts. Click Start >
Settings > Control Panel > System > Hardware > Device Manager. Verify
the status of the N220 under Network Adapter (steps may vary depending on
the version of Windows).
3 Install the N220 on another computer.
4 If the error persists, you may have a hardware problem. In this case, you should
contact your vendor.
7.3 Link Quality
The link quality and/or signal strength is poor.
1 Scan for and connect to another AP with a better link quality using the Site
Survey screen.
2 Move your computer closer to the AP or the peer computer(s) within the
transmission range.
3 There may be too much radio interference (for example from a microwave oven,
or another AP using the same channel) around your wireless network. Lower the
output power of each AP.
4 Make sure there are not too many wireless stations connected to a wireless
network.
- Wireless N-lite USB Adapter 1
- About This User's Guide 3
- Customer Support 4
- Document Conventions 5
- Icons Used in Figures 6
- Safety Warnings 7
- Contents Overview 10
- N220 User’s Guide 10
- Table of Contents 11
- Introduction and 15
- Configuration 15
- CHAPTER 1 17
- 1.2 About Your N220 18
- 1.3 Application Overview 19
- 1.3.2 Ad-Hoc 20
- 1.4.1 ZyXEL Utility Icon 20
- 1.5 Configuration Methods 21
- Chapter 1 Getting Started 22
- CHAPTER 2 23
- Setup (WPS) 24
- 2.2.2 PIN Configuration 25
- Chapter 2 Tutorial 27
- Chapter 2 Tutorial 36
- CHAPTER 3 37
- 3.2 Wireless LAN Overview 38
- 3.3 Wireless LAN Security 39
- 3.3.1.2 IEEE 802.1x 40
- 3.4 WiFi Protected Setup 41
- 3.4.2 PIN Configuration 42
- 3.4.3 How WPS Works 44
- Figure 24 How WPS works 45
- REGISTRARENROLLEE 46
- SECURITY INFO 46
- REGISTRAR 46
- ENROLLEE 46
- EXISTING CONNECTION 46
- 3.4.4 Limitations of WPS 47
- CHAPTER 4 49
- 4.1.3 Before You Begin 50
- 4.3 The Link Info Screen 51
- Chapter 4 Station Mode 52
- 4.3.1 Trend Chart 53
- 4.4 The Site Survey Screen 54
- 4.4.1 Security Settings 55
- 4.4.1.2 WEP Encryption 56
- 4.4.1.3 WPA-PSK/WPA2-PSK 57
- 4.4.1.4 WPA/WPA2 58
- 4.4.1.5 IEEE 802.1x 59
- 4.4.2 Summary Screen 61
- 4.5 The Profile Screen 62
- 4.5.1 Adding a New Profile 63
- 4.6 The Adapter Screen 68
- 4.7.1 Using PEAP in Vista 72
- 4.7.2 Using TLS in Vista 73
- CHAPTER 5 75
- 5.1.2 What You Need to Know 76
- 5.1.3 Before You Begin 76
- 5.2 AP Mode Screen Summary 77
- 5.3 The Link Info Screen 77
- Table 21 Link Info 78
- Table 22 Configuration 79
- 5.4.1 Security Settings 80
- 5.4.1.3 WPA-PSK/WPA2-PSK 81
- 5.5 The MAC Filter Screen 82
- Table 25 MAC Filter 83
- Chapter 5 AP Mode 84
- CHAPTER 6 85
- 6.2 The About Screen 86
- Chapter 6 Maintenance 88
- Troubleshooting 89
- CHAPTER 7 91
- 7.3 Link Quality 92
- Computers 93
- Chapter 7 Troubleshooting 94
- CHAPTER 8 95
- WIRELESS STANDARDS 96
- SOFTWARE SPECIFICATIONS 97
- WIRELESS FEATURES 97
- PART III 99
- APPENDIX A 101
- Properties 103
- Verifying Settings 104
- Windows Vista 105
- Windows 7 109
- Mac OS X: 10.3 and 10.4 113
- Mac OS X: 10.5 and 10.6 117
- Linux: Ubuntu 8 (GNOME) 120
- Linux: openSUSE 10.3 (KDE) 125
- APPENDIX B 131
- Figure 112 RTS/CTS 134
- Fragmentation Threshold 135
- Preamble Type 135
- IEEE 802.11g Wireless LAN 135
- Wireless Security Overview 136
- IEEE 802.1x 137
- Types of EAP Authentication 138
- PEAP (Protected EAP) 139
- Dynamic WEP Key Exchange 140
- WPA and WPA2 140
- Encryption 141
- User Authentication 142
- Security Parameters Summary 144
- Antenna Overview 145
- Antenna Characteristics 145
- Types of Antennas for WLAN 145
- Positioning Antennas 146
- APPENDIX C 147
- Connect 149
- LABEL DESCRIPTION 153
- Setting Up An Ad-Hoc Network 154
- Windows XP 156
- Security Settings 163
- APPENDIX D 173
- Verifying the Settings 177
- APPENDIX E 179
- Industry Canada Statement 181
- Notices 181
- Viewing Certifications 182
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