D-Link DWL-1750 Router Manual PDF (Setup & Configuration Guide)

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2. The wireless client cannot access the Internet in the

Infrastructure mode.

Make sure the wireless client is associated and joined with the correct Access

Point. To check this connection:

Right-click

on the

Local Area Connection icon

in the taskbar> select

View Available Wireless Networks

. The

Connect to

Wireless Network

screen will appear.

Please make sure you have selected the

correct available network, as shown in the illustration below.

Troubleshooting (continued)

Check that the

IP Address

assigned to the wireless adapter is within the

same

IP Address range

as the access point and gateway.

(Since the

DWL-1750 has a wireless IP Address of 192.168.1.50, wireless adapters

must have an IP Address in the same range, e.g., 192.168.1.x. Each

device must have a unique IP Address; no two devices may have the

same IP Address. The subnet mask must be the same for all the

computers on the network.)

To check the

IP Address

assigned to the

wireless adapter,

double-click

on the

Local Area Connection icon

in

the taskbar > select the

Support tab

and the

IP Address

will be

displayed.

(Please refer to

Checking the IP Address

in the

Networking

Basics

section of this manual.)

If it is necessary to assign a

Static IP Address

to the wireless adapter,

please refer to the appropriate section in

Networking Basics

.

If you are

entering a

DNS Server address

you must also enter the

Default

Gateway Address.

(Remember that if you have a DHCP-capable router,

you will not need to assign a Static IP Address. See

Networking

Basics: Assigning a Static IP Address.

)

default

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52

Troubleshooting (continued)

Click

Device

Manager

n

Select

the

Hardware

Tab

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Go to

Start >

My Computer >

Properties

Check to make sure that the Router in your network is functioning properly

by pinging it. If the router is not functioning properly, it will not connect to the

Internet. If you need to find out how to ping network devices, please refer to

“Checking the Wireless Connection by pinging” in the

Networking Basics

section of this manual.

Check to make sure that the DNS server in your network is functioning properly

by pinging it. If the DNS server is not functioning properly, you may be unable

to access the Internet. Typically, your ISP (Internet Service Provider) will be

able to give you the DNS server information. If you need to find out how to

ping network devices, please refer to “Checking the Wireless Connection by

pinging” in the

Networking Basics

section of this manual.

3. Check that the drivers for the network adapters are

installed properly.

You may be using different network adapters than those illustrated here, but this

procedure will remain the same, regardless of the type of network adapters you are

using.

2. The wireless client cannot access the Internet in the

Infrastructure mode.

(continued)

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53

Troubleshooting (continued)

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Double-click

on

Network

Adapters

Right-click on

D-Link

Air

Plus DWL-G650

Wireless Cardbus

Adapter

(In this

example we use the

DWL-G650; you may

be using other network

adapters, but the

procedure will remain

the same.)

Select

Proper-

ties

to check

that the drivers

are installed

properly

Look under

Device

Status

to check that

the device is working

properly

Click

OK

D-Link

Air

Plus DWL-G650

D-Link

Air

Plus DWL-G650 Wireless Cardbus Adapter

D-Link

Air

Plus DWL-G650 Wireless Cardbus Adapter

Page 54 / 80

54

Troubleshooting (continued)

4.

What variables may cause my wireless products to lose reception?

6.

Why can’t I get a wireless connection?

If you have enabled Encryption on the DWL-1750, you must also enable en-

cryption on all wireless clients in order to establish a wireless connection.

Make sure that the SSID on the Access Point and the Wireless Client are

exactly the same.

If they are not, wireless connection will not be estab-

lished.

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Disable all security settings (WEP, MAC Address Control).

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D-Link products let you access your network from virtually anywhere you want.

However, the positioning of the products within your environment will affect the

wireless range. Please refer to

Installation Considerations

in the

Wireless

Basics

section of this manual for further information about the most advanta-

geous placement of your D-Link wireless products.

Turn off your DWL-1750 and the client (the device to which it is commu-

nicating). Turn the DWL-1750 back on again, and then turn on the client.

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Check that the LED indicators are indicating normal activity. If not, check

that the AC power and Ethernet cables are firmly connected.

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Make sure that all devices are set to

Infrastructure

mode.

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Check that the IP Address, subnet mask, and gateway settings are cor-

rectly entered for the network.

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7.

I forgot my encryption key

Reset the DWL-1750 to its factory default settings and restore the other

devices on your network to their default settings. You will lose the current

configuration settings. Reset and restore the DWL-1750 to the factory

default settings, without WEP encryption, by using Telnet or the Console

connection. Please see the Appendix in this manual for information on

how to use Telnet and/or the Console connection.

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Appendix 1:

Telnet Configuration

The DWL-1750 is designed to operate as shipped from the factory without any special

set-up. However, it has many options and parameters that can be changed if users have

special requirements. Most of the management functions can be accessed using TCP/

IP protocol; it can also be configured by Telnet/Console.

Configure the DWL-1750 using a Telnet session on a wired LAN attached computer.

To use the Telnet session, you can simply open a Telnet window using the IP

address that has been assigned to the DWL-1750.

1.

Go to

Start

>

Run;

open the

Run

dialog box.

Enter

telnet 192.168.0.50

(the default terminal type of Telnet is VT100; the default

Ethernet IP Address of the DWL-1750 is

192.168.0.50

).

Click

OK

.

telnet 192.168.0.50

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