Page 61 / 83 Scroll up to view Page 56 - 60
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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
Page 64 / 83
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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.
Page 65 / 83
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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.

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