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ZyXEL NWA-3160 Series User’s Guide
243
CHAPTER 26
Troubleshooting
This chapter offers some suggestions to solve problems you might encounter. The potential
problems are divided into the following categories.
• Power, Hardware Connections, and LEDs
• ZyXEL Device Access and Login
• Internet Access
• Wireless Router/AP Troubleshooting
26.1 Power, Hardware Connections, and LEDs
V The ZyXEL Device does not turn on. None of the LEDs turn on.
1 Make sure you are using the power adaptor or cord included with the ZyXEL Device.
2 Make sure the power adaptor or cord is connected to the ZyXEL Device and plugged in
to an appropriate power source. Make sure the power source is turned on.
3 Disconnect and re-connect the power adaptor or cord to the ZyXEL Device.
4 If the problem continues, contact the vendor.
V One of the LEDs does not behave as expected.
1 Make sure you understand the normal behavior of the LED. See Section 1.6 on page 39.
2 Check the hardware connections. See the Quick Start Guide.
3 Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4 Disconnect and re-connect the power adaptor to the ZyXEL Device.
5 If the problem continues, contact the vendor.
- NWA-3160 Series 1
- About This User's Guide 3
- Document Conventions 4
- Icons Used in Figures 5
- Safety Warnings 6
- Safety Warnings 7
- Contents Overview 10
- Table of Contents 11
- Chapter 4 12
- Chapter 5 12
- Chapter 6 13
- Chapter 7 13
- Chapter 8 14
- Chapter 9 14
- Table of Contents 19
- List of Figures 21
- List of Tables 27
- Introduction 31
- CHAPTER 1 33
- 1.2.1 Access Point 34
- 1.2.2 Bridge / Repeater 34
- 1.2.3 AP + Bridge 35
- 1.2.4 MBSSID 36
- Figure 5 Multiple BSSs 37
- 1.5 Hardware Connections 38
- 1.6 LEDs 39
- Table 2 LEDs (continued) 40
- CHAPTER 2 41
- CHAPTER 3 45
- Chapter 3 Status Screens 46
- Table 3 The Status Screen 46
- Chapter 3 Status Screens 47
- CHAPTER 4 49
- Chapter 4 Tutorial 50
- 4.1.3 Further Reading 51
- Chapter 4 Tutorial 53
- Figure 31 Tutorial: Warning 65
- 4.3.3 Set Up E-mail Logs 66
- 4.3.5 Test the Setup 67
- 4.4.1 Scenario 68
- 4.4.2 Your Requirements 68
- 4.4.3 Setup 68
- Filtering field. Click Apply 70
- The Web 75
- Configurator 75
- CHAPTER 5 77
- 5.3.1 Configuring Password 78
- Chapter 5 System Screens 79
- Table 12 Password 79
- Chapter 5 System Screens 80
- CHAPTER 6 83
- 6.2 Wireless LAN Basics 84
- 6.3 Quality of Service 85
- 6.3.3 ATC+WMM 86
- 6.3.4 Type Of Service (ToS) 87
- 6.4.1 Rapid STP 88
- 6.4.2 STP Terminology 89
- 6.4.3 How STP Works 89
- 6.5 DFS 90
- 6.6 Wireless Screen Overview 90
- 6.7.1 Access Point Mode 91
- 6.7.2 Bridge/Repeater Mode 92
- Figure 49 Bridging Example 93
- 6.7.3 AP+Bridge Mode 96
- 6.7.4 MBSSID Mode 97
- CHAPTER 7 99
- 7.2 802.1x Overview 100
- 7.4 Introduction to WPA 100
- 7.4.1 User Authentication 101
- 7.4.2 Encryption 101
- 7.6 Security Modes 103
- 7.9 Configuring Security 104
- 7.9.1 Security: WEP 105
- 7.9.2 Security: 802.1x Only 106
- RADIUS server has priority 108
- 7.9.4 Security: WPA 109
- 7.10 Introduction to RADIUS 112
- 7.11 Configuring RADIUS 112
- Table 34 RADIUS 113
- CHAPTER 8 115
- Chapter 8 MBSSID and SSID 116
- Chapter 8 MBSSID and SSID 117
- 8.2 SSID 118
- 8.2.2 Configuring SSID 119
- Figure 68 Configuring SSID 120
- Table 37 Configuring SSID 120
- CHAPTER 9 123
- LABEL DESCRIPTION 125
- Device (A) 126
- 00:00:c5:00:00:66 127
- 00:00:c5:00:00:cc 127
- 9.4 The MAC Filter Screen 128
- Configuration screen 129
- 9.5 Configuring Roaming 130
- Figure 77 Roaming Example 131
- Figure 78 Roaming 132
- CHAPTER 10 133
- 10.3 Configuring IP 134
- CHAPTER 11 135
- 11.2.1 “Honeypot” Attack 136
- Chapter 11 Rogue AP 137
- Figure 81 “Honeypot” Attack 137
- 11.3.2 Rogue AP: Friendly AP 138
- 11.3.3 Rogue AP List 139
- Chapter 11 Rogue AP 140
- CHAPTER 12 141
- 12.2 Configuring Telnet 142
- 12.3 Configuring FTP 143
- 12.4 Configuring WWW 144
- 12.5 SNMP 145
- 12.5.1 Supported MIBs 146
- 12.6 SNMP Traps 147
- 12.6.1 Configuring SNMP 148
- CHAPTER 13 151
- 13.3 Trusted AP Overview 153
- 13.4 Configuring Trusted AP 154
- Figure 93 Trusted AP Screen 155
- Table 55 Trusted AP 155
- Table 56 Trusted Users 156
- CHAPTER 14 157
- 14.3 Verifying a Certificate 158
- 14.4 Configuration Summary 159
- 14.5 My Certificates 159
- Chapter 14 Certificates 160
- Figure 97 My Certificates 160
- Table 57 My Certificates 160
- Chapter 14 Certificates 161
- 14.7 Importing a Certificate 162
- 14.8 Creating a Certificate 163
- 14.9 My Certificate Details 165
- 14.10 Trusted CAs 168
- Table 61 Trusted CAs 169
- Table 62 Trusted CA Import 170
- Table 63 Trusted CA Details 171
- CHAPTER 15 175
- Chapter 15 Log Screens 176
- Figure 105 Log Settings 176
- Table 64 View Log 176
- Chapter 15 Log Screens 177
- Table 65 Log Settings 177
- 15.3 Example Log Messages 178
- 15.4 Log Commands 179
- 15.5 Log Command Example 180
- CHAPTER 16 181
- 16.2 Configuring VLAN 182
- Chapter 16 VLAN 183
- Figure 106 WIRELESS VLAN 183
- Table 70 WIRELESS VLAN 183
- 16.2.2 RADIUS VLAN 184
- Table 71 RADIUS VLAN 185
- Chapter 16 VLAN 186
- Figure 112 VLAN Setup 187
- CHAPTER 17 199
- 17.3 Association List 200
- 17.4 Channel Usage 201
- 17.5 F/W Upload Screen 202
- Chapter 17 Maintenance 203
- Table 77 Firmware Upload 203
- 17.6 Configuration Screen 204
- 17.7 Restart Screen 206
- PART III 207
- CHAPTER 18 209
- 18.2.2 Entering the Password 210
- Figure 144 Password Screen 211
- Figure 145 Login Screen 211
- Figure 147 SMT Main Menu 213
- Table 80 Main Menu Commands 213
- Table 81 Main Menu Summary 214
- CHAPTER 19 215
- Chapter 19 General Setup 216
- ESC] at any time to cancel 216
- CHAPTER 20 217
- Chapter 20 LAN Setup 218
- CHAPTER 21 219
- Chapter 21 SNMP Configuration 220
- CHAPTER 22 221
- Chapter 22 System Password 222
- CHAPTER 23 223
- 23.2 System Information 225
- 23.3 Log and Trace 226
- 23.4 Diagnostic 227
- Device and the connections 228
- CHAPTER 24 229
- 24.2 Backup Configuration 230
- 24.3 Restore Configuration 232
- 24.3.2 TFTP File Upload 233
- 24.3.3 Example: TFTP Command 234
- CHAPTER 25 235
- 25.1.1 Command Syntax 236
- 25.1.2 Command Usage 236
- 25.2 Time and Date Setting 237
- 25.3 Remote Management Setup 238
- 25.3.2 FTP 239
- 25.3.3 Web 239
- 25.4 System Timeout 241
- CHAPTER 26 243
- V I forgot the password 244
- V I cannot access the SMT 245
- 26.3 Internet Access 246
- Chapter 26 Troubleshooting 247
- Chapter 26 Troubleshooting 248
- Appendices and 249
- APPENDIX A 251
- Wall-mounting Instructions 253
- Power Adaptor Specifications 255
- 123456 78 256
- Installing Components 258
- Configuring 259
- Windows 2000/NT/XP 260
- Macintosh OS 8/9 264
- Macintosh OS X 266
- Verifying Settings 267
- APPENDIX C 269
- Appendix C Wireless LANs 270
- Appendix C Wireless LANs 271
- Fragmentation Threshold 272
- Preamble Type 273
- IEEE 802.11g Wireless LAN 273
- Wireless Security Overview 273
- IEEE 802.1x 274
- Types of EAP Authentication 275
- PEAP (Protected EAP) 276
- Dynamic WEP Key Exchange 277
- WPA and WPA2 277
- Encryption 278
- User Authentication 278
- Security Parameters Summary 280
- Antenna Overview 280
- Antenna Characteristics 281
- Types of Antennas for WLAN 281
- Positioning Antennas 281
- APPENDIX D 283
- JavaScripts 286
- Java Permissions 287
- JAVA (Sun) 288
- APPENDIX E 289
- Subnet Masks 290
- Notation 291
- Subnetting 292
- Example: Four Subnets 293
- Example: Eight Subnets 294
- Subnet Planning 295
- Configuring IP Addresses 296
- APPENDIX F 297
- Auto Configuration by DHCP 298
- Manual Configuration 298
- Configuration Via SNMP 298
- Configuration File Format 299
- APPENDIX G 305
- ZyXEL Limited Warranty 307
- Appendix G Legal Information 308
- APPENDIX H 309
- Appendix H Customer Support 310
- Appendix H Customer Support 311
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