Section 3 – Configuration

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61

Access Control

To access the

Access Control

windows, click the

Access Control

button in the

Management

directory.

Services

Enable or disable the desired LAN services. When you are finished, click

the

Save/Apply

button.

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62

IP Address

This window allows you to enable or disable Access Control Mode. To

add an IP address management station, click the

Add

button.

Enter the IP address of the management station permitted to access the

local management services. When you are finished, click the

Save/Apply

button.

Passwords

This window allows you to change the password on the Router. When

you are finished, click the

Save/Apply

button.

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63

Update Software

To access the

Tools -

Update Software

window, click the

Update Software

button in the

Management

directory.

This window allows you to update the Router’s software.

Save/Reboot

To access this window, click the

Save/Reboot

button in the

Management

directory.

To save your settings and reboot the system, click the

Save/Reboot

button.

Appendix A – Troubleshooting

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64

Troubleshooting

This chapter provides solutions to problems that might occur during the installation and operation of the DSL-2540U. Read the following

descriptions if you are having problems. (The examples below are illustrated in Windows® XP. If you have a different operating system, the

screenshots on your computer will look similar to the following examples.)

1.

How do I configure my DSL-2540U Router without the CD-ROM?

•

Connect your PC to the Router using an Ethernet cable.

•

Open a web browser and enter the address http://192.168.1.1

•

The default username is ‘admin’ and the default password is ‘admin’.

•

If you have changed the password and cannot remember it, you will need to reset the Router to the factory default setting (see question 2),

which will set the password back to ‘admin’.

Note:

Please refer to the next section “Networking Basics” to check your PC’s IP configuration if you can’t see the login windows.

2.

How do I reset my Router to the factory default settings?

•

Ensure the Router is powered on.

•

Press and hold the reset button on the back of the device for approximately 5 to 8 seconds.

•

This process should take around 30~60 seconds.

3.

What can I do if my Router is not working correctly?

There are a few quick steps you can take to try and resolve any issues:

•

Follow the directions in Question 2 to reset the Router.

•

Check that all the cables are firmly connected at both ends.

•

Check the LEDs on the front of the Router. The Power indicator should be on, the Status indicator should flash, and the DSL and LAN

indicators should be on as well.

•

Please ensure that the settings in the Web-based configuration manager, e.g. ISP username and password, are the same as the settings

that have been provided by your ISP.

Appendix A – Troubleshooting

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65

4.

Why can’t I get an Internet connection?

For ADSL ISP users, please contact your ISP to make sure the service has been enabled/connected by your ISP and that your ISP username and

password are correct.

5.

What can I do if my router can’t be detected by running installation CD?

•

Ensure the Router is powered on.

•

Check that all the cables are firmly connected at both ends and all LEDs work correctly.

•

Ensure only one network interface card on your PC is activated.

•

Click on

Start

>

Control Panel

>

Security Center

to disable the setting of

Firewall

.

Note:

There might be a potential security issue if you disable the setting of Firewall on your PC. Please remember to turn it back on once you have finished

the whole installation procedure and can surf on Internet without any problem.