NetComm NB3300 manual Trouble Shooting, Hardware

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Chapter 6: Trouble Shooting

This chapter provides solutions to problems you may encounter during installation and operation of your NetComm ADSL Modem Router.

Hardware

T: The Power LED is off.

Check the power cable is properly connected to the NetComm ADSL Modem Router, the power adapter and the socket.

T: The LAN Link LED is off.

Check the computer, hub or switch is properly connected to the NetComm ADSL Modem Router.

Check the computer’s Ethernet card is properly installed.

Check the UTP cable connecting the computer to the Router is connected. This cable should not be a crossover cable.

T: The DIAG LED stays lit.

The DIAG LED should light up when the device is first powered up to indicate it is checking for proper operation. After a few seconds, the LED should go off. If it stays on, the device is experiencing a problem. Please contact your dealer.

T: Why can’t I configure the NetComm ADSL Modem Router?

First, check whether the NetComm ADSL Modem Router is properly installed or not, including the LAN and WAN connections, and all devices’ power.

Next, check the IP configuration of your computer :

For Windows 95/98 users: run Winipcfg.exe or Winipcfg from “Run” on the “Start” menu. If there are no IP addresses, click “Release All” and then click “Renew All” to get an IP address.

For Windows NT 4.0/2000/XP users: Open a command prompt and run IpConfig.

Ensure that your computer and the NetComm ADSL Modem Router are on the same network segment. If you are not sure, initiate the DHCP function and let the computer get an IP address automatically from the router.

Ensure that your computer is using an IP Address within the range 192.168.1.2 to 192.168.1.253 and thus compatible with the NetComm ADSL Modem Router’s default IP address of 192.168.1.1

Finally, use Ping command in MS-DOS mode to verify the network connection: Ping 127.0.0.1 to check the TCP/IP stack of your computer.

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Rev.1 - YML632

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ADSL Modem Router

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Contents Page Contents Power Default Settings & FactsResetting One page setup for most Adsl services NetComm Adsl Modem Router Quick StartRev.1 YML632 Adsl Modem Router Introduction Macintosh Setup Hardware Installation & SetupInternet Access Trouble ShootingFeatures of the NetComm Adsl Modem Router What is xDSLContents of the NetComm Adsl Modem Router Package Getting to know your NetComm Adsl Modem RouterRev.1 YML632 Adsl Modem Router Hardware Installation & Setup Rear Panel & ConnectionsFront Panel LEDs DiagWhat is a Micro filter for? System Requirements and Setup Installing the TCP/IP Protocol in WindowsRev.1 YML632 Rev.1 YML632 Adsl Modem Router Fixed IP Addresses Configuration Rev.1 YML632 Adsl Modem Router Internet Access Prepare your network informationWeb-based User Interface Initial Configuration Setup WAN Connection TypeGateway using LLC Encaps. Dynamic IP Gateway using LLC Encaps. Static IPGateway using Classical IP Gateway using PppoeGateway using Pppoa Router using Classical IP Modem using LLC EncapsIP Access Setting Dhcp ConfigurationAccess Control Advanced ApplicationsURL Access Settings Private MAC Filter Port Forwarding Settings Special Application Application Protocol Port RangeDynamic Routing Click Apply after making any changesStatic Routing Administration Settings Status Monitor DMZ Host 10 Log VPN Passthrough Dynamic IP Addressing using Dhcp Server Macintosh SetupHardware Connections Computer Network Configuration Manual Configuration of Fixed IP AddressesNetComm Adsl Modem Router Configuration Adding NetComm Adsl Modem Router to an Existing NetworkTrouble Shooting HardwareClient Side Computers Cannot access my ISP’s home page, why?Get a time out error when I enter a URL or IP address Can’t browse the Internet via the NetComm Adsl Modem RouterDoes the NetComm Adsl Modem Router support 100Mb Ethernet? Appendix a Frequently Asked QuestionsWhat is NAT and what is it used for? Does the NetComm Adsl Modem Router series support IPsec? Can Internet users access LAN computers?When should I use DMZ host? Interface Appendix B Technical SpecificationsStandards Compliance Appendix C Glossary Internet EthernetFirewall IntranetProtocol Network ProtocolPPPoE RoamingContact Information Product WarrantyAppendix D Registering your NetComm Product Limitations of Warranty