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TP-LINK TD-W8901G
Wireless Modem Router
Advanced Troubleshooting Guide
Released on 2009.09.25
Version 1.0
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Content Summary ................................................................................................................................................................... 3 Troubleshooting Flow Chart and Resolutions .......................................................................................................... 3 Check 1 .........................................................................................................................................................
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Summary This document attempts to provide the basic procedures for troubleshooting TD-W8901G modem router problem. Troubleshooting Flow Chart and Resolutions Click the quick links for more details: Check1 Check2 Check3 Note1 Note2 Resolution1 Resolution2 Resolution3 Resolution4 Resolution5 Check 1 1. Make sure that the original power adapter is correctly connected from the modem to the wall socket and it is not damaged; 2. Make sure that the telephone l
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Check 2 The indicator lights on the front panel of the modem router are used to verify the unit’s operation and status between your modem, PC and ISP’s network. The table below describes what the lights mean. Label State Description Resolution On (Steady Power On Check ADSL light. Green) Power Off No Power Resolution 3 On (Solid Synchronized Check Internet light Green) Flashing Wait 2 minutes, if the light does not turn a Attempting Synchronization ADSL Green solid green, r
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Note 1 Open a web browser (either of Windows Internet Explorer, Mozilla Firefox, Apple Safari, Google Chrome, Opera or any other web browser), key in 192.168.1.1 in the address bar and press enter. The default username and password are both “admin” (all in lower case). Refer to the following link for more details: http://www.tp-link.com/support/showfaq.asp?id=87 Note 2 1 、 Go to Quick Start, select the correct connection type (PPPoE/PPPoA or the others), and then enter your local VPI
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Resolution 1 Some software or games requires the special ports to be opened on the modem router, for example: Web Server (TCP Port 80), FTP Server (TCP Port 21), Xbox Live (UDP Port 88\3074, TCP Port 3074), etc. Refer to the following link for the configuration: http://www.tp-link.com/support/showfaq.asp?id=205 Resolution 2 1. If the customer’s problem is not mentioned by this troubleshooting guide, please send an Email to support@tp-link.com for further assistance. 2. Call local techni
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Resolution 5 1 、 Go to the Status page, click System Log, and check the log whether reports “PAP: login to remote failed; please check user/pswd” which means the PPP username and password are incorrect. If so, please go through the Quick Start again and enter the correct PPP username/password and VPI/VCI values. 2 、 Check the Access Management – Filter page, check the active IP/MAC filter rules, you can remove all the rules or change them to “Active – No” for troubleshooting purpose.
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3 、 Check the Access Management – Filter page, check the active URL filter rules, you can remove all the rules or change them to “Active – No” for troubleshooting purpose. 4 、 Go to the Interface Setup – Wireless page, make sure that Access Point is Activated, SSID is broadcasted, Authentication is correct or deactivated, Wireless MAC Address Filter is Deactivated 8 / 15
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Appendix - FAQ Q1. How do I restore my modem’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. Press it for 8 to 10 seconds Once the Router is reset, the current configuration settings will be lost and you will need to Note re-configure the router. Q2. What can I do if I don’t know or forgot my password? 1) Restore the Router’s configuration to its facto
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Q4. What can I do if I cannot access the web-based configuration page? 1) Configure your computer’s IP Address (TCP/IP settings); For Windows XP OS Go to Start > Control Panel, you will then see the following page. Click Network and Internet Connections Click Network Connections Right-click Local Area Connection Click Properties 10 / 15
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Double-click Internet Protocol (TCP/IP) Select Obtain an IP address automatically Select Obtain DNS server address automatically Click OK 2) 11 / 15
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Click OK For Windows Vista OS Go to Start > Settings > Control Panel Click View network status and tasks Click View status 12 / 15
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Click Properties Double-click Internet Protocol Version 4 (TCP/IPv4). 13 / 15
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Select Obtain an IP address automatically Select Obtain DNS server address automatically Click OK 3) Configure your IE browser Open your Internet Explorer web browser, click Tools tab and you will see the following screen. Click Internet Options 14 / 15
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Select Never dial a connection Click OK Now, try to log on to the Web-based configuration page again after the above settings have been configured. If you still cannot access the configuration page, please restore your modem router’s factory default settings and reconfigure the device again. Q5. How to get the technical support from TP-LINK? To download the latest Firmware, Driver, Utility and User Guide, please go to www.tp-link.com/support/download.asp For basic configurat
