Netgear DG824M User Manual Page 97
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- Table of contents
- TROUBLESHOOTING
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Troubleshooting 7-1
Chapter 7
Troubleshooting
This chapter gives information about troubleshooting your DG824M Wireless ADSL Modem
Gateway. After each problem description, instructions are provided to help you diagnose and solve
the problem. For the common problems listed, go to the section indicated.
• Is the gateway on?
• Have I connected the gateway correctly?
Go to “Basic Functioning“ on page 7-1.
• I can’t access the gateway’s configuration with my browser.
Go to “Troubleshooting the Web Configuration Interface“ on page 7-3.
• I’ve configured the gateway but I can’t access the Internet.
Go to “Troubleshooting the ISP Connection“ on page 7-4.
• I can’t remember the gateway’s configuration password.
• I want to clear the configuration and start over again.
Go to “Restoring the Default Configuration and Password“ on page 7-9.
Basic Functioning
After you turn on power to the gateway, the following sequence of events should occur:
1. When power is first applied, verify that the Power LED is on.
2. Verify that the Test LED lights within a few seconds, indicating that the self-test
procedure is running.
3. After approximately 10 seconds, verify that:
a. The Test LED is not lit.
- Reference Manual for the 1
- Model DG824M Wireless 1
- ADSL Modem Gateway 1
- Contents 5
- List of Procedures 11
- Preface 13
- About This Guide 13
- Typographical Conventions 14
- Special Message Formats 14
- Chapter 1 15
- Introduction 15
- A Powerful, True Firewall 16
- Content Filtering 17
- Protocol Support 17
- 1-4 Introduction 18
- Introduction 1-5 19
- What’s in the Box? 20
- Introduction 1-7 21
- Table 1-1. LED Descriptions 21
- The Gateway’s Rear Panel 22
- Chapter 2 23
- Your LAN 27
- Chapter 3 43
- Wireless Configuration 43
- Wireless Settings 44
- Wireless Configuration 3-3 45
- 3-6 Wireless Configuration 48
- Figure 3-3. Wireless WEP menu 48
- Wireless Configuration 3-7 49
- Generate button 50
- Chapter 4 51
- Protecting Your Network 51
- Protecting Your Network 4-3 53
- Protecting Your Network 4-5 55
- 4-6 Protecting Your Network 56
- Figure 4-4: Rules menu 56
- Protecting Your Network 4-7 57
- 4-8 Protecting Your Network 58
- Protecting Your Network 4-9 59
- 4-10 Protecting Your Network 60
- Protecting Your Network 4-11 61
- Order of Precedence for Rules 62
- Services 63
- Chapter 5 67
- Managing Your Network 67
- Figure 5-1 68
- Managing Your Network 5-5 71
- 5-6 Managing Your Network 72
- Managing Your Network 5-7 73
- Figure 5-5 below: 74
- Viewing Attached Devices 75
- 5-10 Managing Your Network 76
- Managing Your Network 5-11 77
- Examples of log messages 78
- Managing Your Network 5-13 79
- 5-14 Managing Your Network 80
- Managing Your Network 5-15 81
- Figure 5-9: Diagnostics menu 81
- Enabling Remote Management 82
- Managing Your Network 5-17 83
- 5-18 Managing Your Network 84
- Chapter 6 85
- Advanced Configuration 85
- Configuring LAN IP Settings 87
- 6-4 Advanced Configuration 88
- Configuring Dynamic DNS 91
- Using Static Routes 93
- 6-12 Advanced Configuration 96
- Chapter 7 97
- Troubleshooting 97
- Power LED Not On 98
- LAN or WAN Port LEDs Not On 98
- Troubleshooting 7-3 99
- ADSL link 100
- Obtaining a WAN IP Address 101
- Request timed out 103
- 7-8 Troubleshooting 104
- Problems with Date and Time 105
- 7-10 Troubleshooting 106
- Appendix A 107
- Technical Specifications 107
- A-2 Technical Specifications 108
- Electromagnetic Emissions 108
- Interface Specifications 108
- Appendix B 109
- Network and Routing Basics 109
- What is a Router? 110
- Routing Information Protocol 110
- IP Addresses and the Internet 110
- 192.0.1.x to 223.255.254.x 112
- Subnet Addressing 113
- Table 7-2. Netmask Formats 114
- Private IP Addresses 115
- Related Documents 117
- Domain Name Server 118
- IP Configuration by DHCP 118
- Ethernet Cabling 119
- Cable Quality 120
- What is a Firewall? 120
- Wireless Networking 121
- Wireless Channel Selection 123
- Appendix C 125
- Preparing Your Network 125
- C-2 Preparing Your Network 126
- Windows 95B, 98, and Me 128
- Preparing Your Network C-5 129
- Verifying TCP/IP Properties 130
- Preparing Your Network C-7 131
- C-8 Preparing Your Network 132
- Preparing Your Network C-9 133
- C-10 Preparing Your Network 134
- Preparing Your Network C-11 135
- C-12 Preparing Your Network 136
- Preparing Your Network C-13 137
- Properties button 138
- 3. Type ipconfig /all 139
- MacOS 8.6 or 9.x 140
- 4. Click Save 141
- Are Login Protocols Used? 142
- 4. Select the IP Address tab 143
- 5. Select the Gateway tab 143
- Computers 144
- Restarting the Network 145
- C-22 Preparing Your Network 146
- Glossary 147
- 2 Glossary 148
- 4 Glossary 150
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