Appendix A – Troubleshooting

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56

•

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.

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 the 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 firewall.

Note:

There is a potential security issue if the firewall is disabled on your PC. Please remember to turn it back on once you have finished the whole

installation procedure. This will enable you to be able to surf the Internet without any problem.

Appendix B - Networking Basics

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57

Networking Basics

Check Your IP Address

After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e. wireless

router) automatically. To verify your IP address, please follow the steps below.

Click on

Start

>

Run

. In the run box type

cmd

and click on the

OK

.

At the prompt, type

ipconfig

and press

Enter

.

This will display the IP address, subnet mask, and the default

gateway of your adapter.

If the address is 0.0.0.0, check your adapter installation, security

settings, and the settings on your router. Some firewall software

programs may block a DHCP request on newly installed adapters.

If you are connecting to a wireless network at a hotspot (e.g. hotel,

coffee shop, airport), please contact an employee or administrator

to verify their wireless network settings.

Appendix B - Networking Basics

D-Link DSL-2542B User Manual

58

Statically Assign An IP Address

If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below:

Step 1

Windows

®

XP - Click on

Start

>

Control Panel

>

Network Connections

.

Windows

®

2000 - From the desktop, right-click on the

My Network Places

>

Properties

.

Step 2

Right-click on the

Local Area Connection

which represents your D-Link network adapter and select

Properties

.

Step 3

Highlight

Internet Protocol (TCP/IP)

and click on the

Properties

.

Step 4

Click on the

Use the following IP address

and enter an IP address that is on the same subnet as

your network or the LAN IP address on your router.

Example: If the router’s LAN IP address is 192.168.1.1, make your IP address 192.168.1.X where X

is a number between 2 and 99. Make sure that the number you choose is not in use on the network.

Set Default Gateway the same as the LAN IP address of your router (192.168.1.1).

Set Primary DNS the same as the LAN IP address of your router (192.168.1.1). The Secondary

DNS is not needed or you may enter a DNS server from your ISP.

Step 5

Click on the

OK

twice to save your settings.

Appendix C – Technical Specifications

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59

Technical Specifications

ADSL Standards

•

ANSI T1.413 Issue 2

•

ITU G.992.1 (G.dmt) AnnexA

•

ITU G.992.2 (G.lite) Annex A

•

ITU G.994.1 (G.hs)

•

ITU G.992.5 Annex A

ADSL2 Standards

•

ITU G.992.3 (G.dmt.bis) Annex A

•

ITU G.992.4 (G.lite.bis) Annex A

Protocols

•

IEEE 802.1d Spanning

Tree

•

TCP/UDP

•

ARP

•

RARP

•

ICMP

•

RFC1058 RIP v1

•

RFC1213 SNMP v1 & v2c

•

RFC1334 PAP

•

RFC1389 RIP v2

•

RFC1577 Classical IP over

ATM

•

RFC1483/2684

Multiprotocol

Encapsulation over ATM

Adaptation Layer 5 (AAL5)

•

RFC1661 Point to Point

Protocol

•

RFC1994 CHAP

•

RFC2131 DHCP Client /

DHCP Server

•

RFC2364 PPP over ATM

•

RFC2516 PPP over

Ethernet

Data Transfer Rate

•

G.dmt full rate downstream: up to 8 Mbps / upstream: up to 1

Mbps

•

G.lite: ADSL downstream up to 1.5 Mbps / upstream up to 512

Kbps

•

G.dmt.bis full rate downstream: up to 12 Mbps / upstream: up

to 12 Mbps

•

ADSL full rate downstream: up to 24 Mbps / upstream: up to 1

Mbps

Media Interface

•

ADSL interface: RJ-11 connector for connection to 24/26

AWG twisted pair telephone line

•

LAN interface: four RJ-45 ports for 10/100BASE-T Ethernet

connection