D Link HP1320A1 User Manual
Section 5 - Connecting to a Wireless Network
Congure WPA-PSK
It is recommended to enable WPA on your wireless router or access point before conguring your wireless adapter. If you are joining an existing
network, you will need to know the WPA key being used.
1. Open the Windows® XP Wireless Utility by right-clicking on the wireless
computer icon in your system tray (lower-right corner of screen). Select
View Available Wireless Networks.
2. Highlight the wireless network (SSID) you would like to connect to and
click Connect.
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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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Section 6 - Troubleshooting
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DHP-1320. Read the following descriptions
if you are having problems. The examples below are illustrated in Windows® XP. If you have a dierent operating system, the screenshots on your
computer will look similar to the following examples.
1. Why can’t I access the web-based conguration utility?
When entering the IP address of the D-Link router (192.168.0.1 for example), you are not connecting to a website nor do you 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:
®
- Microsoft Internet Explorer
- Mozilla Firefox 3.0 and higher
™
- Google
- Apple Safari 3.0 and higher
Chrome 2.0 and higher
6.0 and 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 dierent cable or connect
to a dierent port on the device if possible. If the computer is turned o, the link light may not be on.
• Disable any Internet security software running on the computer. Software rewalls such as Zone Alarm, Black Ice, Sygate, Norton Personal Firewall,
®
and Windows
on disabling or conguring it.
XP rewall may block access to the conguration pages. Check the help les included with your rewall software for more information
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Section 6 - Troubleshooting
• Congure 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 web management.
• If you still cannot access the conguration, unplug the power to the router for 10 seconds and plug back in. Wait about 30 seconds and try accessing
the conguration. If you have multiple computers, try connecting using a dierent 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 5 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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Section 6 - 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 nd 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
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
155D-Link DHP-1320 User Manual
Section 6 - Troubleshooting
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 nd your MTU, you can now congure 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 conguration page for the device.
• Click on Setup and then click Manual Congure.
• To change the MTU enter the number in the MTU eld and click Save Settings to save your settings.
• Test your email. If changing the MTU does not resolve the problem, continue changing the MTU in increments of ten.
156D-Link DHP-1320 User Manual
Appendix A - Wireless Basics
Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless connectivity within your
home, business or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link wireless family of products will allow you to
securely access the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals instead of wires. Wireless
LANs are used increasingly in both home and oce environments, and public areas such as airports, coee shops and universities. Innovative ways
to utilize WLAN technology are helping people to work and communicate more eciently. Increased mobility and the absence of cabling and other
xed infrastructure have proven to be benecial for many users.
Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop and desktop systems support
the same protocols as Ethernet adapter cards.
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in order to use servers, printers
or an Internet connection supplied through the wired LAN. A Wireless Router is a device used to provide this link.
157D-Link DHP-1320 User Manual
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