Frequently Asked Questions
Why is Asymmetric Digital Subscriber Line (ADSL) called Asymmetric? click for answer
What are the benefits of ADSL over analog modems? click for answer

What is USB?

 click for answer
Will my modem constantly connect near the maximum speed? click for answer
Can I use my modem during thunderstorm? click for answer
Do I need to install additional telephone lines in order to use ADSL? click for answer
Will my old PC be fast enough for ADSL? click for answer
How can I send/receive fax as well as surf the Internet at the same time? click for answer
Do I need to use Micro-Filter when using ADSL? click for answer
How do I know that I have successfully installed my modem driver? click for answer
(For Windows 98 Second Edition users) 
Why do I see one or two 'Microsoft PPP over ATM adapter' (with a red X over the icon) appearing at Network adapters device in Device Manager?

click for answer
I am not able to connect to the Internet. click for answer
What is the function of the CSA icon that is on my system tray? click for answer
How do I add or remove the CSA iconon my system tray? click for answer
How do I monitor the performance of my modem? click for answer
My line connection speed indicated at the Modem dial-up status dialog box is different from the actual speed. click for answer
I have accidentally deleted the DSL500U ADSL USB Modem Dial-Up icon from my desktop. How should I get it back? click for answer
I have accidentally deleted the DSL500U ADSL USB Modem Dial-Up icon from the Dial-up Networking / Network and Dial-up Connections window. How should I get it back? click for answer
How do I remove (uninstall) my modem driver? click for answer
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Why is Asymmetric Digital Subscriber Line (ADSL) called Asymmetric?
It is called asymmetric because more bandwidth is reserved for receiving data than for sending data. This is useful because many users of the Internet receive much more data than they send.  

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What are the benefits of ADSL over analog modems ?
Besides the high-speed advantage, ADSL connection is always on. There is no longer a need to log on and off, no more busy signals and no more waiting for the connection to establish - it is always there. On top of these, you can use the phone even when the data connection is on. You do not need to switch between surfing the Net and talking over the phone.  

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What is USB?
USB stands for Universal Serial Bus. It is a new peripheral bus standard developed by PC and Telecom leaders. It allows connection for low to medium speed computer peripherals. USB features high throughput I/O transfer rate of 12Mbit/sec and support up to 127 devices.

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Will my modem constantly connect near the maximum speed?

At ADSL speeds, the limitations depend on the performance or load of the ADSL Service Provider that you are trying to reach, as well as the line condition specific to your location.  

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Can I use my modem during thunderstorm?
ADSL modems can be damaged by thunderstorms. Our product warranty does not apply to damage caused by lightning. If your area is frequent in thunderstorms, you are advised to use a surge protector. Certain surge protectors have been reported to reduce download speed, so you are advised to test your speed before and after installation to make sure that it adds no problems to your line.  

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Do I need to install additional telephone lines in order to use ADSL?
No, you do not need to do so. ADSL and standard voice telephones operate at different sets of frequencies. The difference in frequencies allows both IP (Internet) traffic and voice traffic to co-exist on the same physical phone line.  

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Will my old PC be fast enough for ADSL?
Yes. Limitation comes in only when the ADSL line is used to view video-on-demand or other memory and processor hungry content. Your old PC may be too slow in such cases.  

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How can I send/receive fax as well as surf the Internet at the same time?
To send/receive fax, you may connect your fax machine to the TEL  jack via a Micro-Filter, similar to the Telephone Set connection as illustrated in Step 1 of the manual.

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Do I need to use Micro-Filter when using ADSL?

Micro-Filter is required if you are sharing your ADSL line with your telephone. The Micro-Filter will eliminate noise on the telephone line to ensure the best possible phone performance. If the ADSL uses a different line and not sharing with your Telephone Set, then a Micro-Filter will not be necessary.

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How do I know that I have successfully installed my modem driver?

  1. Ensure that your computer is powered on.

Windows® 98 Second Edition
 - From your Windows desktop, right-click on My computer icon and select Properties.
- Select the Device Manager tab. Double-click on Network adapters.

For Windows® Me
- From your Windows desktop, right-click on My computer icon and select Properties.
- Select the Device Manager tab. Double-click on Network adapters.

For Windows® XP
(instructions are based on default Start menu)
- Click Start. Right-click on My Computer and select Properties.
- Click on the Hardware tab and Device Manager button.

For Windows® 2000
- From your Windows desktop, right-click on My computer icon and select Properties.
- Click on the Hardware tab and Device Manager button.

  1. You should see DSL500U ADSL USB Modem listed. This means that your modem has been installed successfully.

If you see an exclamation mark displayed besides your modem device, it means that you have not installed your driver properly. Click on the device and select Remove. Install your driver again.

If your modem device is not listed at all, it also means that you did not install the driver properly. Install your driver again.

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(For Windows 98 Second Edition users) 
Why do I see one or two 'Microsoft PPP over ATM adapter' (with a red X over the icon) appearing at Network adapters device in Device Manager?

This behaviour occurs because the Netdi.dll functions is default to a maximum configuration for all adapters.  During the installation process, those adapters which are not configured will be disabled, which is why you see a red X over the icon.

It is important that you do not remove the disabled adapters. Attempt to do so will cause your modem to malfunction. (If you have unintentionally removed the adapters, please re-install your modem driver as described in the manual)

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I am not able to connect to the Internet.

Run the diagnostics (DSL Test) that comes with your modem package.

  1. Ensure that your modem is powered on. 

  2. On your Windows desktop, double-click on DSL Test icon. (The shortcut icon was created when you have installed the modem driver successfully). 

You will see 4 tests with 4 black boxes.  Click Start Test. System will perform all 4 tests automatically.

  1. Upon successful tests, all the black boxes will turn green. 

If you fail the Interface Test and/or Modem Test (box turns red after test), please re-install your modem driver as described in the manual. (You may also click View Log to view the remedies).

If you fail the Line Test and/or Network Test (box turns red after test), please contact your ADSL Service Provider. (You may also click View Log to view the remedies).

  1. Click Cancel to exit.

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What is the function of the CSA icon that is on my system tray?
Selecting the CSA icon allows you to monitor the performance of your modem. For details, see 'How do I monitor the performance of my modem'.

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How do I add or remove the CSA icon on my system tray?
To add or remove the CSA icon, click Start > Programs > DSL500U ADSL USB Modem.  (For Windows® XP: Click Start > All Programs > DSL500U ADSL USB Modem). Select either Add CSA Tray Icon to add the CSA icon on your system tray or Remove CSA Tray Icon to remove the CSA icon from your system tray. 

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How do I monitor the performance of my modem?

  1. Once the driver has been properly installed, you will see an CSA icon 
    on your Windows system tray.

  2. Double-click on the icon.

The ADSL Control and Status monitors the ADSL link connection status.  To be able to dial-up to the Internet, the Connection Status must show ADSL link connected.  If not, click Connect.  

The Modem Performance shows the transmitting and receiving rate during the data transfer.

  1. Click Close to exit.

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My line connection speed indicated at the Modem dial-up status dialog box is different from the actual speed.
The Media parameters and ATM Media parameters which stores the detailed information about a specified call does not store the link speed. Thus, the speed that you see may differ.

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I have accidentally deleted the DSL500U ADSL USB Modem Dial-Up icon from my desktop. How should I get it back?
For Windows 98 Second Edition / Me
  1. From your Windows taskbar, click Start > Programs > Accessories > Dial-Up Networking.
  2. Locate the dial-up icon DSL500U ADSL USB Modem and right-click on it. Select Create Shortcut.
  3. You will be prompted to place the shortcut icon on the desktop. Click Yes to proceed.
  4. A 'shortcut to DSL500U ADSL USB Modem' icon will be created on your desktop. You may now access the dial-up from your desktop.

For Windows 2000

  1. From your Windows desktop, right-click on My Network Places icon and select Properties.
  2. At the Network and Dial-up Connections window, click on the Local Area Connection icon. From the panel on your left, ensure that you see the model DSL500U ADSL USB Modem listed. (This is important as you may have more than one Local Area Connection icon at the Network and Dial-up Connections window. If you do not see the correct model displayed, click on another Local Area Connection).
  3. Right-click on the Local Area Connection and select Create Shortcut. You will be prompted to place the shortcut on your desktop. Click Yes to proceed.
  4. A 'shortcut to DSL500U ADSL USB Modem' icon will be created on your desktop. You may now access the dial-up from your desktop.

For Windows XP
(Instructions are based on the default Start menu option)

  1. From your Windows desktop, click Start > All Programs > Accessories > Communications > Network Connections. 
  2. Right-click on the Local Area Connection icon that reflects DSL500U ADSL USB Modem and click Create Shortcut. You will be prompted to place the shortcut on your desktop. Click Yes to proceed.
  3. A 'shortcut to DSL500U ADSL USB Modem' icon will be created on your desktop. You may now access the dial-up from your desktop.

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I have accidentally deleted the DSL500U ADSL USB Modem Dial-Up icon from the Dial-up Networking / Network and Dial-up Connections window. How should I get it back?
For Windows 98 Second Edition / Windows Me
  1. From your Windows taskbar, click Start > Programs > Accessories > Dial-Up Networking.
  2. Double-click on Make New Connection.
  3. At the Name entry, enter DSL500U ADSL USB Modem. Ensure that the PPP ATM Adapter is selected and click Configure.
  4. At the Rate entry, select 1.5Mbit/sec.
    Select the option 'Permanent Virtual Circuit' and click OK.

  1. At the window prompt, click Next to proceed.
  2. At the Telephone number entry, enter 0.
    Select the country that you are currently in and click Next.
  3. At the window prompt, click Next again.
  4. Click Finish to complete installation process.
  5. A 'shortcut to DSL500U ADSL USB Modem' icon is now created on your desktop. Right-click on the icon and select Properties.
  6. Ensure that the field 'Log on to network' is not selected - that is, there should not be a 'tick' in the box. (If there is, click on the box to unselect it).
  7. Click OK. You may now access the shortcut icon on your desktop.

Alternatively, you may uninstall your modem driver and install again. (You may refer to the documentation that comes with your modem for the driver installation).

For Windows 2000

  1. From your Windows desktop, right-click on My Network Places icon and select Properties.
  2. At the Network and Dial-up Connections window, double-click on the Make New Connection icon. 
  3. At the window prompt, click Next.
  4. Select the option 'Dial-up to private network' and click Next.
  5. At the window prompt, accept the default settings and click Next.
  6. At the Phone number entry, enter 'p0,100' (without the quotes) and click Next.
  7. Select your choice of connection availability and click Next.
  8. At the Name entry, enter DSL500U ADSL USB Modem.
    Ensure that there is a 'tick' in the box next to 'Add a shortcut to my desktop'. (If not, click on the box).
  9. Click Finish.
  10. A 'shortcut to DSL500U ADSL USB Modem' icon is now created on your desktop. You may now access the dial-up.

Alternatively, you may uninstall your modem driver and install again. (You may refer to the documentation that comes with your modem for the driver installation).

For Windows XP
(Instructions are based on the default Start menu option)

  1. From your Windows desktop, right-click on My Network Places icon and select Properties.
  2. At the Network tasks, click Create a new connection.
  3. At the window prompt, click Next.
  4. Select the option 'Connect to the Internet' and click Next.
  5. Select the option 'Set up my connection manually' and click Next.
  6. Select the option 'Connect using a dial-up modem' and click Next.
  7. At the window prompt, accept the default selection and click Next.
  8. At the Name entry, enter DSL500U ADSL USB Modem and click Next.
  9. At the Phone number entry, enter 'p0,100' (without the quotes) and click Next.
  10. Enter your username@isp and password as given by your ADSL Service Provider and click Next.
  11. At the window prompt, click on the box 'Add a shortcut icon to this connection to my desktop' and click Finish.
  12. A 'shortcut to DSL500U ADSL USB Modem' icon is now created on your desktop. You may now access the dial-up.

Alternatively, you may uninstall your modem driver and install again. (You may refer to the documentation that comes with your modem for the driver installation).

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How do I remove (uninstall) my modem driver?
  1. To remove your modem driver, click Start > Programs >  DSL500U ADSL USB Modem > Remove ADSL Modem Driver.
    (For Windows XP: Click Start > All Programs >  DSL500U ADSL USB Modem > Remove ADSL Modem Driver). 
  2. At the prompt for restart, remove the USB cable connection and restart your system.

Alternatively, you may remove your modem driver from your Control Panel (Start > Settings).  Double-click on Add/Remove Programs and select ADSL Modem Driver Suite Product.  Click Remove to uninstall the modem driver. Follow any on-screen instructions to complete the uninstallation.

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