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D-L±nk DIR-130 User Manual

Sect±on ³ - Troubleshoot±ng

Troubleshooting

This chapter provides solutions to problems that can occur during the installation and operation of the DIR-130.

Read

the following descriptions if you are having problems.

(The examples below are illustrated in Windows

®

Vista

™

and XP.

If

you have a different operating system, the screenshots on your computer will look similar to the following examples.)

1. Why can’t I access the web-based configuration utility?

When entering the IP address of the D-Link router (192.168.0.1 for example), you are not connecting to a website on

the Internet or have to be connected to the Internet. The device has the utility built-in to a ROM chip in the device itself.

Your computer must be on the same IP subnet to connect to the web-based utility.

• Make sure you have an updated Java-enabled web browser. We recommend the following:

• Internet Explorer 6.0 or higher

• Firefox 1.5 or higher

• Netscape 8 or higher

• Mozilla 1.7.12 (5.0) or higher

• Opera 8.5 or higher

• Safari 1.2 or higher (with Java 1.3.1 or higher)

• Camino 0.8.4 or higher

• Verify physical connectivity by checking for solid link lights on the device. If you do not get a solid link light, try using

a different cable or connect to a different port on the device if possible. If the computer is turned off, the link light may

not be on.

• Disable any Internet security software running on the computer. Software firewalls such as Zone Alarm, Black Ice,

Sygate, Norton Personal Firewall, and Windows

®

firewall may block access to the configuration pages. Check the help

files included with your firewall software for more information on disabling or configuring it.

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D-L±nk DIR-130 User Manual

Sect±on ³ - Troubleshoot±ng

• Configure your Internet settings:

• Go to

Start

>

Control Panel

. In Windows

®

XP or Windows Vista

™

, make sure you are in Classic View.

Double-click the

Internet Options

Icon. From the

Security

tab, click the button to restore the settings to

their defaults.

• Click the

Connection

tab and set the dial-up option to

Never Dial a Connection

. Click the

LAN Settings

button. Make sure nothing is checked. Click

OK

.

• Go to the

Advanced

tab and click the button to restore these settings to their defaults. Click

OK

three

times.

• Close your web browser (if open) and open it.

• Access the web management. Open your web browser and enter the IP address of your D-Link router in the address

bar. This should open the login page for your the web management.

• If you still cannot access the configuration, unplug the power to the router for 10 seconds and plug back in. Wait

about 30 seconds and try accessing the configuration. If you have multiple computers, try connecting using a different

computer.

2. What can I do if I forgot my password?

If you forgot your password, you must reset your router. Unfortunately this process will change all your settings back

to the factory defaults. You will lose all your custom settings.

To reset the router, locate the reset button (hole) on the rear panel of the unit. With the router powered on, use a

paperclip to hold the button down for 10 seconds. Release the button and the router will go through its reboot process.

Wait about 30 seconds to access the router. The default IP address is 192.168.0.1. When logging in, the username is

admin

and leave the password box empty. A list of the default settings can be found on page 64.

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D-L±nk DIR-130 User Manual

Sect±on ³ - Troubleshoot±ng

3. Why can’t I connect to certain sites or send and receive e-mails when connecting through my router?

If you are having a problem sending or receiving e-mail, or connecting to secure sites such as eBay, banking sites, and

Hotmail, we suggest lowering the MTU in increments of ten (Ex. 1492, 1482, 1472, etc).

Note: AOL DSL+ users must use MTU of 1400.

To find the proper MTU Size, you’ll have to do a special ping of the destination you’re trying to go to. A destination could

be another computer, or a URL.

• Windows Vista

™

users click on

Start

and type

cmd

in the

Start Search

box. Click

OK

or press

Enter

.

• Windows

®

NT, 2000 and XP users click on

Start,

click

Run

, and then type

cmd

in the box. Click

OK

or

press

Enter

.

• Windows

®

95, 98, and Me users click on

Start,

click

Run

, and then type

command

. Click

OK

or press

Enter

.

• Once the window opens, you’ll need to do a special ping.

Use the following syntax:

ping [url] [-f] [-l] [MTU value]

Example:

ping yahoo.com -f -l 1472

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D-L±nk DIR-130 User Manual

Sect±on ³ - Troubleshoot±ng

You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a

fragmented packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example,

lets say that 1452 was the proper value, the actual MTU size would be 1480, which is the optimum for the network

we’re working with (1452+28=1480).

Once you find your MTU, you can now configure your router with the proper MTU size.

To change the MTU rate on your router follow the steps below:

• Open your browser, enter the IP address of your router (192.168.0.1) and click

OK

.

• Enter your username (admin) and password (blank by default). Click

OK

to enter the web configuration

page for the device.

• Click on

Setup

and then click

Manual Configure

.

• To change the MTU enter the number in the MTU field and click

Save Settings

to save your settings.

• Test your e-mail. If changing the MTU does not resolve the problem, continue changing the MTU in

increments of ten.

4. Why is the date on the logs incorrect?

The router has not successfully connected to a Network Time (NTP) server. Check that your Internet connection settings

are correct. If you have connected for the first time, allow up to 10 minutes to connect.

If the time is off by 1 hour, make sure you have selected the correct time zone and that Daylight Savings is selected.

Refer to

Section 3 - Configuration > Time and Date

for more information.

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D-L±nk DIR-130 User Manual

Append±x A - Network±ng Bas±cs

Networking Basics

Check your IP address

After you install your new D-Link adapter or if you already have an Ethernet adapter installed on your computer, by

default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e. router) automatically. To

verify your IP address, please follow the steps below.

Windows Vista

™

Users:

• Click

Start

>

All Programs

>

Accessories

>

Command Prompt

. You may

need administrative access to run this application.

•

For all additional prompt windows inquiring of running the command prompt

application, select

Yes

,

OK

, or

Continue

.

• At the prompt, type

ipconfig

and press

Enter

.

• This will display the IP address, subnet mask, and default gateway of your

adapter.

Windows

®

2000/XP Users:

• Click on

Start

>

Run

. In the run box type

cmd

and click

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.