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P-660HN-TxA User’s Guide
233
CHAPTER 23
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
23.1 Power, Hardware Connections, and LEDs
The ZyXEL Device does not turn on. None of the LEDs turn on.
1 Make sure the ZyXEL Device is turned on.
2 Make sure you are using the power adaptor or cord included with the ZyXEL
Device.
3 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.
4 Turn the ZyXEL Device off and on.
5 If the problem continues, contact the vendor.
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 25.
- P-660HN-TxA 1
- About This User's Guide 3
- Customer Support 4
- Disclaimer 4
- Document Conventions 5
- Icons Used in Figures 6
- Safety Warnings 7
- Contents Overview 10
- P-660HN-TxA User’s Guide 10
- Table of Contents 11
- Chapter 7 13
- Chapter 8 13
- User’s Guide 19
- CHAPTER 1 21
- 1.4.1 Internet Access 22
- 1.5 Wireless Access 23
- 1.6 LEDs (Lights) 25
- 1.7 The RESET Button 26
- 1.7.1 Using the Reset Button 27
- Chapter 1 Introduction 28
- CHAPTER 2 29
- Figure 4 Password Screen 30
- 2.2 The Main Screen 31
- 2.2.1 Title Bar 32
- 2.2.2 Navigation Panel 32
- LINK TAB FUNCTION 33
- 2.2.3 Main Window 34
- 2.2.4 Status Bar 34
- CHAPTER 3 35
- Table 4 Status Screen 36
- CHAPTER 4 39
- SSID Example 40
- Security Mode WPA-PSK 40
- 802.11 Mode 802.11b+g+n 40
- 4.2.2 Using WPS 41
- Wireless Client 43
- ZyXEL Device 43
- PIN Configuration 44
- 4.2.3 Without WPS 46
- Another Network 49
- A 192.168.1.34 50
- R’s N1 192.168.1.253 50
- R’s N2 192.168.10.2 51
- B 192.168.10.33 51
- Mappings 52
- Technical Reference 57
- CHAPTER 5 59
- Figure 11 Wizard Welcome 60
- 5.2.1 Manual Configuration 62
- Figure 24 Wireless LAN 69
- CHAPTER 6 73
- 6.1.3 Before You Begin 74
- Chapter 6 WAN Setup 76
- 6.3.1 More Connections Edit 80
- Chapter 6 WAN Setup 81
- 6.4 WAN Technical Reference 83
- 6.4.1.1 ENET ENCAP 84
- 6.4.1.2 PPP over Ethernet 84
- 6.4.1.3 PPPoA 84
- 6.4.1.4 RFC 1483 84
- 6.4.2 Multiplexing 85
- 6.4.3 VPI and VCI 85
- 6.4.4 IP Address Assignment 85
- 6.5 Traffic Shaping 86
- 6.5.1 ATM Traffic Classes 87
- Unspecified Bit Rate (UBR) 88
- CHAPTER 7 89
- 7.2 The LAN IP Screen 91
- 7.3 The DHCP Setup Screen 93
- 7.4 The Client List Screen 94
- 7.5 The IP Alias Screen 95
- Ethernet 96
- Interface 96
- 7.6 LAN Technical Reference 97
- 7.6.2 DHCP Setup 98
- 7.6.3 DNS Server Addresses 98
- 7.6.4 LAN TCP/IP 99
- 7.6.5 RIP Setup 100
- 7.6.6 Multicast 101
- Chapter 7 LAN Setup 102
- CHAPTER 8 103
- 8.1.3 Before You Start 104
- 8.2 The AP Screen 105
- 8.2.1 No Security 106
- 8.2.2 WEP Encryption 107
- 8.2.3 WPA(2)-PSK 108
- 8.2.4 WPA(2) Authentication 109
- Chapter 8 Wireless LAN 111
- LABEL DESCRIPTION 111
- 8.2.6 MAC Filter 112
- 8.3 The More AP Screen 113
- 8.3.1 More AP Edit 114
- 8.4 The WPS Screen 115
- 8.5 The WPS Station Screen 116
- 8.6 The WDS Screen 117
- Chapter 8 Wireless LAN 118
- 8.7 The Scheduling Screen 119
- Radio Channels 121
- 8.8.3.1 SSID 123
- 8.8.3.2 MAC Address Filter 123
- 8.8.3.3 User Authentication 124
- 8.8.3.4 Encryption 124
- 8.8.4 Signal Problems 125
- 8.8.5 BSS 125
- 8.8.6 MBSSID 126
- Figure 58 WDS Link Example 127
- 8.8.8.2 PIN Configuration 128
- Figure 60 How WPS works 131
- REGISTRARENROLLEE 132
- SECURITY INFO 132
- REGISTRAR 132
- ENROLLEE 132
- EXISTING CONNECTION 132
- CHAPTER 9 135
- Port Forwarding 136
- Finding Out More 136
- Default Server IP Address 138
- A=192.168.1.33 139
- D=192.168.1.36 139
- C=192.168.1.35 139
- B=192.168.1.34 139
- 9.5 The ALG Screen 145
- 9.6 NAT Technical Reference 146
- 9.6.3 How NAT Works 147
- 9.6.4 NAT Application 148
- 9.6.5 NAT Mapping Types 148
- Table 48 NAT Mapping Types 149
- CHAPTER 10 151
- LAND Attack 152
- Ping of Death 152
- 10.2 The Firewall Screen 153
- Chapter 10 Firewall 154
- CHAPTER 11 155
- 11.2 The URL Filter Screen 156
- Chapter 11 Filters 159
- Chapter 11 Filters 160
- CHAPTER 12 161
- 12.2 The Static Route Screen 162
- 12.2.1 Static Route Edit 163
- Chapter 12 Static Route 164
- CHAPTER 13 165
- IEEE 802.1Q Tagged VLAN 166
- Chapter 13 802.1Q/1P 167
- Chapter 13 802.1Q/1P 170
- CHAPTER 14 171
- Tagging and Marking 172
- 14.2 The QoS Screen 173
- 14.3 QoS Technical Reference 176
- 14.3.2 IP Precedence 177
- CHAPTER 15 179
- 15.2 The Dynamic DNS Screen 180
- CHAPTER 16 181
- Remote Management Limitations 182
- 16.2 The WWW Screen 183
- 16.3 The Telnet Screen 184
- 16.4 The FTP Screen 185
- 16.5 The SNMP Screen 186
- 16.5.1 Configuring SNMP 187
- 16.6 The DNS Screen 188
- 16.7 The ICMP Screen 189
- Chapter 16 Remote Management 190
- CHAPTER 17 191
- Cautions with UPnP 192
- UPnP and ZyXEL 192
- 17.2 The UPnP Screen 193
- Installing UPnP in Windows Me 194
- Installing UPnP in Windows XP 195
- Network Co nnections 196
- Web Configurator Easy Access 200
- Network 201
- CHAPTER 18 203
- 18.2 The CWMP Setup Screen 204
- Chapter 18 CWMP 205
- LINK DESCRIPTION 205
- Chapter 18 CWMP 206
- CHAPTER 19 207
- Chapter 19 System Settings 209
- Chapter 19 System Settings 210
- CHAPTER 20 211
- System Log 212
- 20.3 Log Descriptions 213
- Table 75 System Error Logs 214
- Table 77 TCP Reset Logs 215
- Table 78 Packet Filter Logs 215
- Table 79 ICMP Logs 216
- Table 80 CDR Logs 216
- Table 81 PPP Logs 216
- Table 82 UPnP Logs 217
- Table 84 Attack Logs 217
- Table 85 802.1X Logs 218
- Table 86 ACL Setting Notes 218
- Table 87 ICMP Notes 219
- Table 88 Syslog Logs 220
- CHAPTER 21 221
- Figure 105 Error Message 223
- Backup Configuration 224
- Restore Configuration 225
- Reset to Factory Defaults 226
- 21.4 The Restart Screen 227
- Chapter 21 Tools 228
- CHAPTER 22 229
- 22.3 The DSL Line Screen 230
- Chapter 22 Diagnostic 231
- Chapter 22 Diagnostic 232
- CHAPTER 23 233
- I forgot the password 234
- 23.3 Internet Access 236
- Chapter 23 Troubleshooting 238
- CHAPTER 24 239
- 24.3 Wireless Features 243
- Table 96 Wireless Features 244
- STANDARD DESCRIPTION 245
- APPENDIX A 247
- Windows 95/98/Me 248
- Configuring 249
- Verifying Settings 250
- Windows 2000/NT/XP 251
- Windows Vista 255
- Macintosh OS 8/9 262
- Macintosh OS X 264
- Using Configuration Files 267
- APPENDIX B 271
- Subnet Masks 272
- Network Size 273
- Notation 274
- Subnetting 274
- Example: Four Subnets 276
- Example: Eight Subnets 277
- Subnet Planning 278
- Configuring IP Addresses 278
- Private IP Addresses 279
- APPENDIX C 281
- JavaScripts 284
- Java Permissions 286
- JAVA (Sun) 287
- Mozilla Firefox 288
- APPENDIX D 291
- Figure 163 RTS/CTS 294
- Fragmentation Threshold 295
- Preamble Type 295
- IEEE 802.11g Wireless LAN 295
- Wireless Security Overview 296
- IEEE 802.1x 297
- Types of EAP Authentication 298
- PEAP (Protected EAP) 299
- Dynamic WEP Key Exchange 300
- WPA and WPA2 300
- Encryption 301
- User Authentication 302
- Security Parameters Summary 304
- Antenna Overview 305
- Antenna Characteristics 305
- Types of Antennas for WLAN 305
- Positioning Antennas 306
- APPENDIX E 307
- Appendix E Services 308
- Appendix E Services 309
- APPENDIX F 311
- ZyXEL Limited Warranty 313
- Registration 314
- Numerics 315
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