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Reference Manual for the Model DG814 DSL Modem Internet Gateway
Troubleshooting 7-3
• If your gateway’s IP address has been changed and you don’t know the current IP address,
clear the gateway’s configuration to factory defaults. This will set the gateway’s IP address to
192.168.0.1. This procedure is explained in
“Erase the Configuration“ on page 5-8.
• Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet
Explorer, click Refresh to be sure the Java applet is loaded.
• Try quitting the browser and launching it again.
• Make sure you are using the correct login information. The factory default login name is
admin and the password is password. Make sure that CAPS LOCK is off when entering this
information.
If the gateway does not save changes you have made in the Web Configuration Interface, check the
following:
• When entering configuration settings, be sure to click the APPLY button before moving to
another menu or tab, or your changes are lost.
• Click the Refresh or Reload button in the Web browser. The changes may have occurred, but
the Web browser may be caching the old configuration.
Troubleshooting the ISP Connection
ADSL link
If your gateway is unable to access the Internet, you should first determine whether you have an
ADSL link with the service provider. The state of this connection is indicated with the WAN LED.
WAN LED Green or Blinking Green
If your WAN LED is green or blinking green, then you have a good ADSL connection. You can be
confident that the service provider has connected you line correctly and that your wiring is correct.
WAN LED Blinking Yellow
If your WAN LED is blinking yellow then your gateway is attempting to make an ADSL
connection with the service provider. The LED should turn green within several minutes.
- Reference Manual for the 1
- Model DG814 DSL 1
- Modem Internet Gateway 1
- Trademarks 2
- Statement of Conditions 2
- Contents 5
- About This Guide 11
- Translator (NAT) 12
- Typographical Conventions 13
- Special Message Formats 13
- Chapter 1 15
- Introduction 15
- 1-2 Introduction 16
- Content Filtering 17
- Security 17
- Autosensing 10/100 Ethernet 17
- 1-4 Introduction 18
- Maintenance and Support 19
- 1-6 Introduction 20
- Chapter 2 21
- Setting Up the Hardware 21
- The Gateway’s Front Panel 22
- The Gateway’s Rear Panel 23
- Connecting the Gateway 24
- Setting Up the Hardware 2-5 25
- Connecting the Power Adapter 27
- Verifying Power 27
- 2-8 Setting Up the Hardware 28
- Chapter 3 29
- Preparing Your Network 29
- 3-2 Preparing Your Network 30
- Verifying TCP/IP Properties 34
- MacOS 8.6 or 9.x 34
- Your Internet Account 36
- Login Protocols 37
- Account Information 37
- Restarting the Network 39
- Ready for Configuration 39
- 3-12 Preparing Your Network 40
- Chapter 4 41
- Figure 4-1. Login window 42
- Manual Configuration 50
- Completing the Configuration 52
- Chapter 5 55
- Maintenance 55
- 5-2 Maintenance 56
- Maintenance 5-3 57
- 5-4 Maintenance 58
- Attached Devices 60
- Maintenance 5-7 61
- Erase the Configuration 62
- Gateway Upgrade 63
- 5-10 Maintenance 64
- Chapter 6 65
- NAT Status 68
- Dynamic DNS 70
- LAN IP Setup 71
- LAN TCP/IP Setup 72
- Remote Management 73
- Static Routes 75
- Static Route Example 77
- Figure 6-7. UPnP Menu 78
- Chapter 7 81
- Troubleshooting 81
- 7-2 Troubleshooting 82
- ADSL link 83
- Obtaining a WAN IP Address 84
- Request timed out 86
- Troubleshooting 7-7 87
- Problems with Date and Time 88
- Appendix A 89
- Technical Specifications 89
- Appendix B 91
- Networks and Routing Basics 91
- Routing Information Protocol 92
- IP Addresses and the Internet 92
- 1.x.x.x to 126.x.x.x 93
- 128.1.x.x to 191.254.x.x 93
- 192.0.1.x to 223.255.254.x 93
- Subnet Addressing 94
- Network Subnet Node 95
- Table B-2. Netmask Formats 96
- Private IP Addresses 97
- Domain Name Server 99
- IP Configuration by DHCP 100
- Ethernet Cabling 101
- Cable Quality 102
- Glossary 103
- 2 Glossary 104
- 4 Glossary 106
- WinPOET 3-9 110
- World Wide Web 1-iii 110
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