Frequently Asked Questions

1. What is ADSL?
ADSL is short for Asymmetric Digital Subscriber Line. ADSL is state of the art modem technology used for unlocking the potential bandwidth of the widely available public telephone network.

ADSL service can coexist with the conventional services such as POTS (Plain Old Telephone Service) and ISDN (Integrated Services Digital Network), as these conventional services and ADSL occupy distinct frequency spectra.

The benefit of ADSL over a serial or dial-up line is that it is always on and always connected increasing bandwidth and lowering the costs compared with a dial-up or leased line. ADSL technology is asymmetric in that it allows more bandwidth from a central office to the customer site than from the customer site to the central office. This asymmetry, combined with always on access (which eliminates call setup), makes ADSL ideal for Internet and intranet surfing, video on-demand, and remote LAN access.

2. Advantages of WTC ADSL Bridge/Router:

WTC’s Advantage Series ADSL Bridged/Router is easy to install and can be connected broadband Internet access. Configuration can be automatically performed upon connection to ADSL line, reducing deployment costs for service providers while facilitating end-user installation. Built-in PPPoE and PPPoA clients eliminated the need to install any client software to surf the Internet.

An optional micro-filter telephone port accommodate a fax or telephone while preserving line quality when using Full-Rate or G.Lite. It also prevents noise generated by the same telephone or fax from being reintroduced into the ADSL line.

3. Connecting the cables to your ADSL Bridge/Router:

1) Connect the ADSL cable and optional telephone.

Connect one end of the provided phone cable to the port labeled ADSL on the rear panel of the device. Connect the other end to your wall phone jack.

You can attach a telephone line to the device. This is helpful when the ADSL line uses the only convenient wall phone jack. If desired, connect the telephone cable to the port labeled PHONE.

2) Connect the Ethernet cable.

If you are using the device with a single computer, attach one end of a “straight” Ethernet cable to the port labeled LAN and the other to your computer’s Ethernet port.

If you are connecting a LAN to the device, use a crossover cable to connect it to the uplink port on the hub.

3) Attach the power connector.

Connect the AC power adapter to the PWR connector on the back of the device and plug in the adapter to a wall outlet or power strip.

4) Turn on the Bridge/Router and power up your systems.

Press the Power switch on the back panel of the device to the ON position.

Turn on and boot up your computer(s) and any LAN devices such as hubs or switches.

5) Install USB software and connect the USB cable. (Optional)

You can attach a single computer to the device using a USB cable. The USB port is useful if you have an USB-enabled PC that does not have a network interface card for attaching to your Ethernet network.

Before attaching the USB cable, you must install a USB driver and configure the computer.

4. Quick Configuration in Configuration Manager:

        1) Access the Quick Configuration

The Configuration Manager program is preinstalled into memory on your device. To access the program, you need the following:

•  A PC or laptop connected to the LAN port on the device as described in the Quick Start

•  A web browser installed on the PC. The program is designed to work best with Microsoft Internet Explorer® version 5.0, Netscape Navigator® version 4.7 or later versions.

You can access the program from any computer connected to the device via the LAN.

A.  From a LAN computer, open your web browser, type the following URL in the web address (or        location) box, and press <Enter>:

   http://192.168.1.1

These are the predefined IP addresses for the LAN on your device.

B. Enter your user name and password, and then click .

C. The first time you launch the program, use these defaults:

        2) Setting Quick Configuration

The Quick Configuration displays the settings you are most likely to need to change when you first set up your ADSL/Ethernet router. Work with your ISP to determine the values or settings you need to change.

If the Quick Configuration page is not already displaying, click the Home tab, and then click Quick Configuration. The following table provides a brief explanation of each setting. Some of these settings are described more fully in other help topics, which are referenced below.

• Operation Mode. This setting enables or disables the device's Internet and routing functions. When set to "No", the device cannot be used to provide Internet connectivity for your network.
• Encapsulation: This setting determines the type of data link used to communicate with your ISP.
• VPI and VCI: These settings determine the unique data path your modem uses to communicate with your ISP.
• Bridge: This setting enables or disables bridging between the device and your ISP. Your ISPs may also refer to this using "RFC 1483" or "Ethernet over ATM".
• IGMP: This setting enables or disables the Internet Group Management Protocol, which some ISPs use to perform remote configuration of your device.
• IP Address and Subnet Mask: If your ISP has assigned a public IP address to your Network, enter the address and the associated subnet mask in the boxes provided.

DNS Settings

• Primary/Secondary DNS: Enter the Primary and Secondary DNS server addresses provided by your ISP.

PPP Settings

• Username and Password: Enter the username and password you use to log in to your ISP. (Note: this is not the same as the user name and password you used to log in to Configuration Manager.) 

ATM Interface: Select the ATM interface you want to use (usually atm-0). You system may be configured with more than one ATM interface if you are using different types of services with your ISP.

When you are finished entering or selecting data, click . Then, click the Admin tab,

click Commit & Reboot in the task bar, and click  to save your changes to permanent memory.

 5. Diagnosis of each LED:

        1) Power LED does not illuminate after product is turned on.

  Verify that you are using the power cable provided with the device and that it is securely connected to the device and a wall socket/power strip.

        2) LINK LED does not illuminate after phone cable is attached.

  Verify that a standard telephone cable like the one provided is securely connected to the ADSL port and your wall phone jack. Wait 30 seconds to allow the device to negotiate a connection with your ISP.

        3) LAN LED does not illuminate after Ethernet cable is attached.

  Verify that the Ethernet cable is securely connected to your LAN hub or PC and to the device. Make sure the PC and/or hub is      

   turned on.

  Verify that you are using a cross-type Ethernet cable to the uplink port on a hub or a straight-  through type cable to a stand-alone     PC. (Hold the connectors at each end of the cable side-by-side in the same position. If the order of their color-coded wire pairs     is the same, it is a straight-through type.) Contact Customer Support if your cable is not the correct type.

Verify that your cable is sufficient for your network requirements. A 100 Mbit/sec network   (10BaseTx) should use cables labeled     Cat 5. 10Mbit/sec cables may tolerate lower quality cables.

6. If the PC cannot access Internet:

Use the ping utility to check whether your PC can communicate with the device’s LAN IP address (by default 192.168.1.1). If it cannot, check the Ethernet cabling.

If you statically assigned a private IP address to the computer, (not a registered public address), verify the following:

• Check that the gateway IP address on the computer is your public IP address. If it is not, correct the address or configure the PC to receive IP information automatically

• Verify with your ISP that the DNS server specified for the PC is valid. Correct the address or configure the PC to receive this information automatically.

Verify that a Network Address Translation rule has been defined on the device to translate the private address to your public IP address. The assigned IP address must be within the range specified in the NAT rules. Or, configure the PC to accept an address assigned by another device. The default configuration includes a NAT rule for all dynamically assigned addresses within a predefined pool.

 (For detail information, please refer to Chapter 10 -- NAT Configuration" in User’s Guide)

7. If you cannot access the Configuration Manager program from your browser:

Use the ping utility to check whether your PC can communicate with the device’s LAN IP address (by default 192.168.1.1). If it cannot, check the Ethernet cabling.

Verify that you are using Internet Explorer v5.0 or later, or Netscape Navigator v4.7 or later. Support for JavaScript® must be enabled in your browser. Support for Java® may also be required.

Verify that the PC’s IP address is defined as being on the same subnet as the IP address assigned to the LAN port on the device.

8. If the Internet speed is remarkably slow:

In this case, the problem might be in phone line of subscriber side or the environment of your ISP. You should call your ISP provider.