TP-Link TD-8816 Appendix B Troubleshooting, What can I do if I don’t know or forgot my password?

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Appendix B: Troubleshooting

TD-8816

ADSL2+ Modem Router User Guide

Appendix B: Troubleshooting

1. How do I restore my Router’s configuration to its factory default settings?

With the Router powered on, press and hold the RESET button on the rear panel for 8 to 10 seconds before releasing it.

)Note:

Once the Router is reset, the current configuration settings will be lost and you will need to re-configure the router.

2. What can I do if I don’t know or forgot my password?

1)Restore the Router’s configuration to its factory default settings. If you don’t know how to do that, please refer to section T1.

2)Use the default user name and password: admin, admin.

3)Try to configure your Router once again by following the instructions in the previous steps of the QIG.

3. What can I do if I cannot access the web-based configuration page?

1) Configure your computer’s IP Address.

For Windows XP OS

Go to Start > Control Panel, you will then see the following page.

Click Network and Internet

Connections

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Contents Rev2.0.0 1910010536 TD-8816 ADSL2+ Modem RouterCOPYRIGHT & TRADEMARKS CE Mark Warning FCC STATEMENTPackage Contents CONTENTSHardware Installation Chapter 3. Quick Installation GuideAppendix B Troubleshooting Appendix A SpecificationsAppendix C Technical Support 4.6.1Package Contents TD-8816ADSL2+ Modem Router User Guide Chapter 1. Introduction 1.2 Main Features1.1 Product Overview ADSL1.3 Conventions 2.1 The Front Panel Chapter 2. Hardware InstallationLED Explanation Name2.3 Installation Environment 2.4 Connecting the Router2.2 The Back Panel PHONE Connect to the phone sets 3.1 Configure PC Chapter 3. Quick Installation GuideADSL2+ Modem Router User Guide 3.2 Login 2 Is the TCP/IP configuration for your PC correct?1 Is the connection between your PC and the Router correct? After that, you will see the screen shown below, enter the default User Name admin and the default Password admin, and then click OK to access to the Quick Start screen. You can follow the steps below to complete the Quick Setup Step 5 Click NEXT to finish the Quick Start Chapter 4. Software Configuration 4.1 Status4.1.1 Device Info 4.1.2 System Log 4.1.3 Statistics ¾ Select Ethernet, and you will see the statistics table as below Statistics Table¾ Select ADSL, and you will see the statistics table as below 4.3 Interface Setup 4.2 Quick Start4.3.1 Internet Virtual Circuit Select the VC number you want to setup, PVC0~PVC7 ¾ TCP MTU Option Enter the TCP MTU as your desire 1. Dynamic IP AddressDirection Select this option to specify the RIP direction. None is for disabling the RIP function. Both means the ADSL Router will periodically send routing information and accept routing information, and then incorporate them into routing table. IN only means the ADSL router will only accept but will not send RIP packet. OUT only means the ADSL router will only send but will not accept RIP packet 2. Static IP Address3. PPPoA/PPPoE ADSL2+ Modem Router User Guide 4. Bridge Mode 4.3.2 LANADSL2+ Modem Router User Guide IP Pool Count The max user pool size If you select Disabled, the DHCP function will not take effect 4.4 Advanced Setup 4.4.1 Firewall4.4.2 Routing 4.4.3 NAT ¾ Virtual Circuit Enter Virtual Circuit Index that you plan to setup for the NAT function 4.4.3.1. DMZ4.4.3.2. Virtual Server Other configurations for the entries as shown in Figure To add a virtual server entry4.4.3.3. IP Address Mapping To add a mapping rule IP Address Mapping is only available for VCs with Multiple IPsStep 2 Select the Rule index for the rule as shown in Figure 4.4.4 QoS 4.4.5 VLAN Virtual LAN VLAN is a group of devices on one or more LANs that are configured so that they can communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because VLANs are based on logical instead of physical connections, it is very flexible for user/host management, bandwidth allocation and resource optimization. There are two types of VLAN as follows 1. Assign VLAN PVID for each Interface2. Define VLAN Group 4.4.6 ADSL 4.5.1 ACL 4.5 Access Management4.5.2.1. IP Filter 4.5.2 Filter¾ Interface Select the interface for the entry be shown in the row 2 for the matching with ¾ Rule Type For IP Filter, please select IP hereTo add an IP Address filtering entry 4.5.2.2. MAC Filter Step 5 Finally, click the SAVE to save the entryTo add a MAC Address filtering entry 4.5.2.3. Application Filter Step 4 Finally, click the SAVE to save the entry4.5.2.4. URL Filter ¾ Application Filter Activate or deactivate the function4.5.3 SNMP 4.5.4 UPnPTo add a URL filter entry 4.5.5 DDNS 4.5.6 CWMP 4.6 Maintenance4.6.1 Administration 4.6.2 Time Zone1. NTP Server automatically 2. PC’s Clock Select PC’s Clock as the Synchronize time, you don’t need to set any items3. Manually To upgrade the routers firmware, follow these instructions below 4.6.3 Firmware4 The router will reboot after the upgrading has been finished To back up the Router’s current settingsTo restore the Router’s settings 4.6.5 Diagnostics 4.6.4 SysRestartTD-8816 ADSL2+ Modem Router User Guide 4.7 Help Appendix A Specifications GeneralPhysical and Environment 2. What can I do if I don’t know or forgot my password? Appendix B Troubleshooting3. What can I do if I cannot access the web-based configuration page? For Windows XP OSClick Network Connections Right-click Local AreaConnection Click Properties Protocol TCP/IP Select Obtain an IP address automatically Double-click InternetClick OK Select Obtain DNS server address automaticallyADSL2+ Modem Router User Guide For Windows Vista OS Click View network status and tasks Click View statusClick Properties Protocol Version 4 TCP/IPv4 Select Obtain an IP address automatically Click View network status and tasks Click Change adapter settings For Windows 7 OSArea Connection Click Properties Select Obtain DNS server address automatically Click Internet Options Select Never dial a connection 4. What can I do if I cannot access the Internet?try the following steps. If you cannot, please set your computer referring to T3 then try to see if you can access the Internet. If the problem persists, please go to the next step Global Appendix C Technical Support Technical SupportE-mail support@tp-link.com Singapore
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