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P-334WHD User’s Guide
Chapter 22 Troubleshooting 203
CHAPTER 22
Troubleshooting
This chapter covers potential problems and the corresponding remedies.
22.1 Problems Starting Up the ZyXEL Device
Table 85 Troubleshooting Starting Up Your ZyXEL Device
PROBLEM CORRECTIVE ACTION
None of the
LEDs turn on
when I turn on
the ZyXEL
Device.
Make sure that the ZyXEL Device’s power adaptor is connected to the ZyXEL Device
and plugged in to an appropriate power source. Make sure that the ZyXEL Device and
the power source are both turned on.
Turn the ZyXEL Device off and on.
If the error persists, you may have a hardware problem. In this case, you should
contact your vendor.
22.2 Problems with the LAN
Table 86 Troubleshooting the LAN
PROBLEM CORRECTIVE ACTION
The LAN LEDs
do not turn on.
Check your Ethernet cable connections (refer to the Quick Start Guide for details).
Check for faulty Ethernet cables.
Make sure your computer’s Ethernet card is working properly.
I cannot access
the ZyXEL
Device from the
LAN.
Make sure that the IP address and the subnet mask of the ZyXEL Device and your
computer(s) are on the same subnet.
- P-334WHD 1
- Copyright 3
- Certifications 4
- Notices 5
- Viewing Certifications 5
- Safety Warnings 6
- Safety Warnings 7 7
- ZyXEL Limited Warranty 8
- Customer Support 9
- P-334WHD User’s Guide 10
- 10 Customer Support 10
- Table of Contents 11
- 18 Table of Contents 18
- List of Figures 19
- List of Tables 23
- About This User's Guide 27
- Related Documentation 27
- User Guide Feedback 27
- Syntax Conventions 27
- Graphics Icons Key 28
- CHAPTER 1 29
- 1.2.2 Access Point Mode 31
- 1.2.3 WiFi WAN Router Mode 31
- 1.4 LEDs 32
- Table 1 LED Descriptions 33
- CHAPTER 2 35
- 2.4.1 Router Mode Status 36
- 2.4.4 Navigation Panel 45
- Table 9 Screens Summary 46
- CHAPTER 3 53
- 3.2.1 System Name 54
- 3.2.2 Domain Name 55
- 3.3.1 Basic(WEP) Security 57
- 3.4.1 Ethernet Connection 59
- 3.4.2 PPPoE Connection 60
- 3.4.3 PPTP Connection 61
- 3.4.5 Your IP Address 63
- 3.4.6 DNS Server Address 64
- 3.4.8 WAN MAC Address 65
- CHAPTER 4 71
- 4.2.1 SSID 72
- 4.2.2 MAC Address Filter 72
- 4.2.3 User Authentication 72
- 4.2.4 Encryption 73
- 74 Chapter 4 Wireless LAN 74
- Figure 37 Wireless General 74
- 4.3.1 No Security 75
- 4.3.2 WEP Encryption 76
- Chapter 4 Wireless LAN 77 77
- 4.3.3 WPA-PSK/WPA2-PSK 78
- 4.3.4 WPA/WPA2 79
- 80 Chapter 4 Wireless LAN 80
- Table 34 Wireless: WPA/WPA2 80
- 4.4 MAC Filter 81
- 82 Chapter 4 Wireless LAN 82
- Table 35 MAC Address Filter 82
- Chapter 4 Wireless LAN 83 83
- 84 Chapter 4 Wireless LAN 84
- CHAPTER 5 85
- Figure 45 AP: Status 87
- Figure 56 Profile: Activate 92
- CHAPTER 6 95
- 6.1.3 WAN MAC Address 96
- 6.1.4 Multicast 96
- 6.2 Broadband Connection 97
- 98 Chapter 6 WAN 98
- 6.2.2 PPPoE Encapsulation 99
- 100 Chapter 6 WAN 100
- Chapter 6 WAN 101 101
- 6.2.3 PPTP Encapsulation 102
- Chapter 6 WAN 103 103
- 104 Chapter 6 WAN 104
- Table 40 PPTP Encapsulation 104
- 6.3 Link Authentication 105
- 106 Chapter 6 WAN 106
- Figure 60 Modem Dialup 106
- Table 41 Modem Dialup 106
- Chapter 6 WAN 107 107
- 6.5 Advanced WAN Screen 108
- Chapter 6 WAN 109 109
- Table 42 WAN > Advanced 109
- 110 Chapter 6 WAN 110
- CHAPTER 7 111
- 112 Chapter 7 WiFi WAN 112
- 7.3 WiFi Screen 113
- 114 Chapter 7 WiFi WAN 114
- Table 44 WiFi WAN > WiFi 114
- 7.3.1 No Security 115
- 7.3.2 WEP Encryption 115
- 116 Chapter 7 WiFi WAN 116
- 7.3.3 WPA-PSK/WPA2-PSK 117
- 118 Chapter 7 WiFi WAN 118
- Chapter 7 WiFi WAN 119 119
- 120 Chapter 7 WiFi WAN 120
- CHAPTER 8 121
- 8.2.3 Multicast 122
- 8.3 LAN IP Screen 123
- 8.4 LAN IP Alias 123
- 8.5 Advanced LAN Screen 124
- Chapter 8 LAN 125 125
- Figure 70 Advanced LAN 125
- Table 50 Advanced LAN 125
- 126 Chapter 8 LAN 126
- CHAPTER 9 127
- 128 Chapter 9 DHCP Server 128
- 9.4 Client List Screen 129
- 130 Chapter 9 DHCP Server 130
- Figure 73 Client List 130
- Table 53 Client List 130
- CHAPTER 10 131
- 10.3 General NAT Screen 132
- Table 54 NAT General 133
- Figure 76 NAT Application 134
- Table 55 NAT Application 134
- 10.4.1 Game List Example 135
- Figure 77 Game List Example 136
- 10.6 NAT Advanced Screen 137
- Table 56 NAT Advanced 139
- CHAPTER 11 141
- 142 Chapter 11 Dynamic DNS 142
- Figure 80 Dynamic DNS 142
- Table 57 Dynamic DNS 142
- CHAPTER 12 143
- 144 Chapter 12 Firewall 144
- 12.1.5.1 LAN-to-WAN rules 145
- 12.1.5.2 WAN-to-LAN rules 145
- 12.2 Triangle Routes 146
- 12.4 Services Screen 147
- 148 Chapter 12 Firewall 148
- Figure 84 Firewall Services 148
- Table 59 Firewall Services 148
- Chapter 12 Firewall 149 149
- 150 Chapter 12 Firewall 150
- CHAPTER 13 151
- 13.5 Schedule 153
- CHAPTER 14 157
- 14.2 IP Static Route Screen 158
- Table 63 Static Route Setup 159
- CHAPTER 15 161
- Advanced screen 168
- CHAPTER 16 173
- 16.2 WWW Screen 174
- 16.3 Telnet 175
- 16.4 Telnet Screen 175
- 16.5 FTP Screen 176
- 16.6 DNS Screen 176
- CHAPTER 17 179
- 17.2 UPnP and ZyXEL 180
- 17.3 UPnP Screen 180
- Chapter 17 UPnP 181 181
- Table 77 Configuring UPnP 181
- 182 Chapter 17 UPnP 182
- Chapter 17 UPnP 183 183
- 184 Chapter 17 UPnP 184
- Chapter 17 UPnP 185 185
- 186 Chapter 17 UPnP 186
- CHAPTER 18 187
- 18.3 Time Setting Screen 188
- Chapter 18 System 189 189
- Figure 102 Time Setting 189
- Table 79 Time Setting 189
- 190 Chapter 18 System 190
- CHAPTER 19 191
- 19.2 Log Settings 192
- Chapter 19 Logs 193 193
- Figure 104 Log Settings 193
- Table 81 Log Settings 193
- 194 Chapter 19 Logs 194
- CHAPTER 20 195
- 20.2 Configuration Screen 196
- 20.2.1 Backup Configuration 197
- 20.2.2 Restore Configuration 197
- 198 Chapter 20 Tools 198
- 20.3 Restart Screen 199
- 200 Chapter 20 Tools 200
- CHAPTER 21 201
- CHAPTER 22 203
- 22.3 Problems with the WAN 204
- Blocking 205
- Figure 115 Pop-up Blocker 207
- Figure 117 Internet Options 208
- 22.7.1.2 JavaScripts 209
- 3 Scroll down to Scripting 210
- 22.7.1.3 Java Permissions 211
- 22.7.1.3.1 JAVA (Sun) 212
- Figure 122 Java (Sun) 213
- 6 Then click the OK button 214
- APPENDIX A 217
- APPENDIX B 219
- APPENDIX C 221
- Installing Components 222
- Configuring 223
- Windows 2000/NT/XP 224
- Macintosh OS 8/9 229
- Macintosh OS X 231
- Verifying Settings 232
- Using Configuration Files 234
- APPENDIX D 237
- Subnet Masks 239
- Subnetting 239
- Example: Two Subnets 240
- Example: Four Subnets 241
- Example Eight Subnets 242
- Table 105 Eight Subnets 243
- APPENDIX E 245
- 246 Appendix E Wireless LANs 246
- Appendix E Wireless LANs 247 247
- Fragmentation Threshold 248
- Preamble Type 249
- IEEE 802.11g Wireless LAN 249
- Wireless Security Overview 250
- IEEE 802.1x 250
- Types of RADIUS Messages 251
- Types of Authentication 252
- Dynamic WEP Key Exchange 253
- WPA and WPA2 254
- User Authentication 255
- 256 Appendix E Wireless LANs 256
- Security Parameters Summary 257
- 258 Appendix E Wireless LANs 258
- APPENDIX F 259
- APPENDIX G 261
- Table 115 TCP Reset Logs 262
- Table 117 ICMP Logs 263
- Table 122 Attack Logs 265
- Table 123 PKI Logs 266
- Table 124 802.1X Logs 267
- Table 126 ICMP Notes 268
- Table 127 Syslog Logs 269
- Log Commands 270
- Displaying Logs 271
- Log Command Example 272
- APPENDIX H 273
- NetBIOS Filter Configuration 274
- APPENDIX I 275
- 276 Appendix I Services 276
- Appendix I Services 277 277
- 278 Appendix I Services 278
- APPENDIX J 279
- Example Internal SPTGEN Menus 282
- Table 133 Menu 3 283
- Table 135 Menu 12 287
- Command Examples 294
- Numerics 295
- P-334U/P-335U User’s Guide 296
- Protocol 297
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