D-Link DIR-600L Router Manual PDF (Setup & Configuration Guide)

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67

D-Link DIR-600L User Manual

Section 5 - Connecting to a Wireless Network

3. The

Wireless Network Connection

box will appear. Enter the WPA-PSK

passphrase and click

Connect

.

It may take 20-30 seconds to connect to the wireless network. If the

connection fails, please verify that the WPA-PSK settings are correct. The

WPA-PSK passphrase must be exactly the same as on the wireless router.

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68

D-Link DIR-600L User Manual

Section 12 - Troubleshooting

Troubleshooting

This chapter provides solutions to problems that can occur during the installation and operation of the DIR-600L.

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. 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 7 or higher

• Firefox 3.5 or higher

• Safari 4 or higher

• Chrome 8 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

®

XP 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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69

D-Link DIR-600L User Manual

Section 12 - Troubleshooting

• Conﬁgure your Internet settings:

• Go to

Start

>

Settings

>

Control.Panel

. 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.

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.

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70

D-Link DIR-600L User Manual

Section 12 - Troubleshooting

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

If you are having a problem sending or receiving email, 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.

• Click on

Start

and then click

Run

.

• Windows

®

95, 98, and Me users type in

command

(Windows

®

NT, 2000, and XP users type in

cmd

) and press

Enter

(or click

OK

).

• 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-Link DIR-600L User Manual

Section 12 - Troubleshooting

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, let’s 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 the

Save.Settings

button to save your settings.

• Test your email. If changing the MTU does not resolve the problem, continue changing the MTU in increments

of ten.

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