D Link WA548A1 Wireless N 300 PCI Express Desktop Adapter User Manual

D Link Corporation Wireless N 300 PCI Express Desktop Adapter

User Manual

2D-Link DWA-548 User Manual
Table of Contents
Product Overview .............................................................. 3
Package Contents ........................................................................... 3
System Requirements ................................................................... 3
Introduction ..................................................................................... 4
Features .............................................................................................. 5
Hardware Overview ....................................................................... 6
Installation ......................................................................... 7
Getting Started ................................................................................ 7
Remove Existing Installations ................................................ 7
Disable Other Wireless Adapters ........................................... 8
Wireless Installation Considerations ......................................10
Adapter Installation .....................................................................11
Push Button Conguration (PBC) .......................................14
Manual Connect ........................................................................16
Conguration ...................................................................18
D-Link Wireless Connection Manager ...................................18
Wireless Networks ....................................................................19
My Wireless Networks .............................................................20
Support ........................................................................................23
About ............................................................................................24
Connect to a Wireless Network .......................................25
Using Windows® 7 ........................................................................25
Using Windows Vista® .................................................................26
Using Windows® XP .....................................................................27
Wireless Security .............................................................28
What is WPA™? ...............................................................................28
Congure WPA/WPA2-Personal ...............................................29
Using the D-Link Utility ..........................................................29
Using Windows Vista® .............................................................34
Using Windows® XP .................................................................36
Congure WPA/WPA2-Enterprise ...........................................38
Using the D-Link Utility ..........................................................38
Troubleshooting ..............................................................39
Windows® 7 Troubleshooting ..................................................44
Wireless Basics .................................................................46
Networking Basics ...........................................................50
Check your IP address .................................................................50
Windows® XP Users ..................................................................50
Windows® 7/Vista® Users .......................................................50
Statically Assign an IP address .................................................51
Windows® XP Users ..................................................................51
Windows® 7/Vista® Users .......................................................52
Technical Specications ..................................................53
Warranty ...........................................................................54
Table of Contents
3D-Link DWA-548 User Manual
Section 1 - Product Overview
System Requirements
• A desktop computer with an available 64-bit PCI Express slot
• Windows® 7, Vista®, or XP (with Service Pack 3)
• 300MHz processor and at least 64MB of RAM
Product Overview
Package Contents
If any of the above items are missing, please contact your reseller.
D-Link DWA-548 Wireless N 300 PCI Express Desktop Adapter
Two Antennas
Low Prole Bracket
CD with drivers and software
4D-Link DWA-548 User Manual
Section 1 - Product Overview
Introduction
The D-Link Wireless N 300 PCI Express Desktop Adapter (DWA-548) is an 802.11n client device that delivers unrivaled wireless
performance for your desktop computer. With the DWA-548, you can add or upgrade your Desktop PC’s wireless connectivity
without having to purchase a new computer. Once connected, access your network’s high-speed Internet connection while
sharing photos, les, music, video, printers, and storage. Get a better Internet experience with a faster wireless connection so
you can enjoy digital phone calls, gaming, downloading, and video streaming.
Powered by Wireless N 300 technology, the DWA-548 provides a faster wireless connection and superior reception than
802.11g*. The DWA-548 is designed for use in bigger homes and for those that demand higher networking. Maximize wireless
performance by connecting this desktop adapter to a Wireless N 300 router and stay connected from virtually anywhere in
the home.
The DWA-548 is a powerful 64-bit desktop adapter that installs quickly and easily into desktop computers. Like all D-Link
wireless adapters, the DWA-548 can be used in ad-hoc mode to connect directly with other cards for peer-to-peer le sharing or
in infrastructure mode to connect with a wireless access point or router for access to the Internet in your oce or home network.
The DWA-548 features robust security to help protect the wireless network from intruders, complying with the latest
wireless networking security protocols, including Wi-Fi Protected Access (WPA/WPA2) support. The DWA-548 also includes
a conguration utility to discover available wireless networks and create and save detailed connectivity proles for those
networks most often accessed.
* Maximum wireless signal rate derived from IEEE Standard 802.11g and 802.11n specications. Actual data throughput will vary. Network conditions and environmental factors,
including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental factors will adversely aect
wireless signal range.
5D-Link DWA-548 User Manual
Section 1 - Product Overview
• Faster Wireless Networking* - Enable wireless connectivity on your Desktop PC computer with the
DWA-548. With the performance of D-Link’s Wireless N 300 line of wireless products, the DWA-548 delivers an
unsurpassed wireless experience. Perform multiple network tasks at once with the speed provided by this Wireless
Adapter.
• Compatible with 802.11g Devices - Fully compatible with the 802.11g standards, the DWA-548 can connect
with existing 802.11g compliant routers, access points and cards. That means you can still communicate with
colleagues and friends while you have the ability to link to even more wireless networks.
• Better Security with WPA/WPA2 - With the DWA-548 in your Desktop PC, you can securely connect to a wireless
network using WPA/WPA2 (Wi-Fi Protected Access) for wireless authentication. WPA/WPA2 provides you with a
much higher level of security for your data and communication than what has previously been available.
* Maximum wireless signal rate derived from IEEE Standard 802.11g and 802.11n specications. Actual data throughput will vary. Network conditions and environmental
factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental factors will
adversely aect wireless signal range.
Features
6D-Link DWA-548 User Manual
Section 1 - Product Overview
Hardware Overview
1WLAN LED The LED will blink when the wireless adapter is operating correctly.
1
7D-Link DWA-548 User Manual
Section 2 - Installation
Getting Started
Installation
This section will walk you through the installation process. If you have a built-in wireless adapter, please disable it in the device
manager before installing your D-Link adapter.
Before installing your new D-Link wireless adapter, please verify the following:
• Remove any previous installations of wireless adapters (see below)
• Disable any built-in wireless adapters (refer to the next page)
• Verify the settings such as the SSID and security settings of the network(s) you want to connect to
Remove Existing Installations
If you’ve installed a dierent manufacture’s adapter or a dierent model D-Link adapter, make sure the software is uninstalled
before installing the new software. Some utilities may cause a conict with the new software. If you plan to use multiple
adapters at dierent times, make sure the utilities are not set to load when your computer boots up. Windows® 7, Vista® and
XP users may use the built-in wireless utility for all adapters.
To remove any old software:
Windows® 7 users: Click Start > Control Panel > Uninstall Programs.
Windows Vista®/XP users: Click Start > Control Panel > Add or Remove Programs.
8D-Link DWA-548 User Manual
Section 2 - Installation
Disable Other Wireless Adapters
Step 1
From the desktop, right-click on the My Computer icon and select
Properties.
Step 2
Click the Hardware tab and then click Device Manager. Scroll down the
list and click the + sign to the left of Network Adapters.
Step 3
Right-click the adapter you would like to disable and select Disable.
To prevent any conicts with the D-Link wireless adapter, it is recommended to disable any wireless adapter (as well as any
unused Ethernet adapters).
9D-Link DWA-548 User Manual
Section 2 - Installation
Step 4
Click Yes to disable the adapter.
Step 5
The adapter is now disabled. When disabled, a red X will be displayed.
Disabling the adapter will not remove the drivers. If you would like to use the
adapter in the future, simply right-click it and select Enable.
10D-Link DWA-548 User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless adapter lets you access your network using a wireless connection from virtually anywhere within the
operating range of your wireless network. Keep in mind that the number, thickness and location of walls, ceilings, or other
objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending on the types of materials
and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to follow these
basic guidelines:
1. Keep the number of walls and ceilings between the D-Link adapter and other network devices to a minimum
- each wall or ceiling can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so
that the number of walls or ceilings is minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree
angle appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick!
Position devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for better
reception.
3. Building Materials make a dierence. A solid metal door or aluminum studs may have a negative eect on
range. Try to position access points, wireless routers, and computers so that the signal passes through drywall
or open doorways. Materials and objects such as glass, steel, metal, walls with insulation, water (sh tanks),
mirrors, le cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF
noise.
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security
systems), your wireless connection may degrade dramatically or drop completely. Make sure your 2.4GHz phone
base is as far away from your wireless devices as possible. The base transmits a signal even if the phone in not
in use.
11D-Link DWA-548 User Manual
Section 2 - Installation
Adapter Installation
Note: Please install the DWA-548 Desktop PCI Express Adapter into your computer before installing the driver software from the D-Link CD.
When the “Add New Hardware” wizard appears, click Cancel.
Step 1
Before installing, write down the serial number and hardware revision (e.g. A1) in case you need to contact technical support.
Please turn o your computer and unplug the power cord from the computer. Remove the case to access your motherboard.
Firmly insert the DWA-548 adapter into an available PCIe slot inside your computer.
Once inserted, close the case and insert the power cable back into the computer. Connect both antennas to the adapter and then
turn on your computer. Windows will automatically detect and install the adapter.
Step 2
Insert the DWA-548 Driver CD into the CD-ROM drive. If the CD Autorun function does not automatically start on your computer, go
to Start > Run. In the run box type “D:\autorun.exe” (where D: represents the drive letter of your CD-ROM drive) and click OK. When
the autorun screen appears, click Install and follow the on-screen instructions to install the wireless adapter drivers and software.
12D-Link DWA-548 User Manual
Section 2 - Installation
Step 3
The InstallShield Wizard window will appear. Click Next to continue.
Step 4
By default setup will install to the default location: C:\Program Files\D-Link\DWA-548, where
C: represents the drive letter of your hard drive. To install to a dierent location click Browse
and specify the location. Click Next to continue.
Step 5
Select the Program Files folder location. Click Next to continue.
13D-Link DWA-548 User Manual
Section 2 - Installation
Step 6
The drivers will install. This may take 1-2 minutes.
Step 7
The Wireless Connection Wizard will now appear.
If you want to manually connect to a wireless network, refer to page 16. The following
instructions will connect you to a wireless network using Wi-Fi® Protected Setup (WPS).
Click Next to continue.
14D-Link DWA-548 User Manual
Section 2 - Installation
To connect to your network using the WPS push button conguration method, click the
virtual button as shown in the screenshot.
Press the WPS button on your access point or wireless router within 2 minutes to establish
connectivity.
When this screen appears, you have successfully connected to your wireless network.
Click Finish to complete your setup.
Push Button Conguration (PBC)
15D-Link DWA-548 User Manual
Section 2 - Installation
Click Finish to complete your setup.
16D-Link DWA-548 User Manual
Section 2 - Installation
To manually connect to your wireless network, select Manually connect to a wireless
network and then click Next.
Enter the network name (SSID) manually. If you enter the SSID incorrectly, you will
automatically be brought to the site survey page. Click Scan to display the site survey
page. Click Next to continue.
Manual Connect
17D-Link DWA-548 User Manual
Section 2 - Installation
Click Finish to continue. If you are prompted to reboot your computer, select Yes, I want
to restart my computer now.
Please enter the encryption key and click Next.
Click the Scan button to display a list of wireless networks (site survey). Click on the
network name (SSID) and click Next.
18D-Link DWA-548 User Manual
Section 3 - Conguration
Conguration
D-Link Wireless Connection Manager
This section will show you how to congure your new D-Link wireless adapter using the D-Link Utility as well as Windows® XP
Zero Conguration and Windows® 7/Vista® WLAN Auto Conguration.
The D-Link DWA-548 uses the Wireless Connection Manager as the management software. The manager provides the user an
easy interface to change any settings related to the wireless adapter. Clicking on the Wireless Connection Manager icon on
the desktop will start the Conguration.
If you are using Windows® 7, Vista®, or XP, please skip to pages 25, 26 or 27 respectively.
Double-click the Wireless Connection Manager icon on your desktop.
19D-Link DWA-548 User Manual
Section 3 - Conguration
Wireless Networks
The Wireless Networks (Site Survey) page will display all wireless networks that are available in your area. To connect to a
network, simply highlight the wireless network (SSID) and click Connect.
The SSID (Service Set Identier) is the name of the
wireless network.
Displays the MAC address of the wireless device.
Displays the Link Quality of the wireless connection.
If there is a “lock” icon, this means the wireless
network is secure. You must know the encryption
key/security settings to connect.
Displays the channel of the wireless network.
Connect to a wireless network using Wi-Fi®
Protected Setup. Refer to the next page.
Rescans for available wireless networks in your
area.
Highlight a wireless network and click the Connect
button. If the network is secure, a pop-up window
will appear. Enter the security information to
connect (refer to the Wireless Security section for
more information).
Select a wireless network profile from the
drop-down menu and click Activate to connect.
Allow up to 30 seconds to connect.
MAC:
SSID:
Channel:
Signal:
Security:
Refresh Button:
Connect Button:
Activate Button:
WPS Button:
20D-Link DWA-548 User Manual
Section 3 - Conguration
My Wireless Networks
The My Wireless Networks page will allow you to create, edit, and delete wireless network proles. Every time you connect to
a network using the Wireless Networks page, a prole will automatically be created.
New Button:
Modify:
Click New to create a new wireless network prole
(refer to page 21).
Click Modify to edit a current prole (refer to page
22).
Click Delete to remove a prole.
Click Activate to use a profile. Allow up to 30
seconds to connect to the wireless network.
The Prole Details section will display information
about the wireless network such as the network
name (SSID), network type (Infrastructure or
Ad-Hoc), and if the network is secured.
Delete:
Activate:
Prole Details:
21D-Link DWA-548 User Manual
Section 3 - Conguration
Add Prole
You may add a new network by clicking the New button from the My Wireless Networks page.
Prole Name:
SSID:
Enter a name for your prole (e.g. Home, Oce,
Coee Shop).
Enter the SSID of the wireless network.
If you are connecting to a wireless router or access
point, select Infrastructure. If you are connecting
to another wireless client such as an adapter, select
Ad-Hoc.
Select the type of security used. Please refer to the
Wireless Security section for more information.
Click OK to save your settings.
Network Type:
Set Security:
OK Button:
22D-Link DWA-548 User Manual
Section 3 - Conguration
Modify Prole
You may edit an existing prole by clicking the Modify button from the My Wireless Networks page.
Prole Name:
SSID:
Enter a name for your prole (e.g. Home, Oce,
Coee Shop).
Displays the SSID of the network.
Displays the network type.
Select the type of security used. Please refer to the
Wireless Security section for more information.
Click OK to save your settings.
Network Type:
Set Security:
OK Button:
23D-Link DWA-548 User Manual
Section 3 - Conguration
Support
If you need help, click the Support button. A panel will appear to the right of the utility which will display information about
the utility.
24D-Link DWA-548 User Manual
Section 3 - Conguration
The About screen gives you information about the Firmware and Utility Versions of the DWA-548.
About
25D-Link DWA-548 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows® 7
Windows® 7 users may use the built-in wireless utility. If you are using another company’s utility, please refer to the user manual
of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option similar to
the Windows® 7 utility as seen below.
Left-click the wireless icon in your system tray (lower-right corner
next to the time).
If you receive the Wireless Networks Detected bubble, click on
the center of the bubble to access the utility.
or
The utility will display any available wireless networks in your area.
Click on a network (displayed using the SSID) and click the Connect
button.
If you get a good signal but cannot access the Internet, check your
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
26D-Link DWA-548 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows Vista®
Windows Vista® users may use the built-in wireless utility. If you are using another company’s utility, please refer to the user
manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option
similar to the Windows Vista® utility as seen below.
Right-click on the wireless computer icon in your system tray
(lower-right corner next to the time). Select Connect to a network.
If you receive the Wireless Networks Detected bubble, click on
the center of the bubble to access the utility.
or
The utility will display any available wireless networks in your area.
Click on a network (displayed using the SSID) and click the Connect
button.
If you get a good signal but cannot access the Internet, check the
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
27D-Link DWA-548 User Manual
Section 3 - Conguration
Connect to a Wireless Network
Using Windows® XP
Windows® XP users may use the built-in wireless utility (Zero Conguration Utility). If you are using another company’s utility,
please refer to the user manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have
a “site survey” option similar to the Windows® XP utility as seen below.
Right-click on the wireless computer icon in your system tray (lower-
right corner next to the time). Select View Available Wireless
Networks.
If you receive the Wireless Networks Detected bubble, click on the
center of the bubble to access the utility.
or
The utility will display any available wireless networks in your area.
Click on a network (displayed using the SSID) and click the Connect
button.
If you get a good signal but cannot access the Internet, check the
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
28D-Link DWA-548 User Manual
Section 4 - Wireless Security
Wireless Security
This section will show you the dierent levels of security you can use to protect your data from intruders. The DWA-548 oers
the following types of security:
• WPA/WPA2-Personal
• WPA/WPA2-Enterprise
What is WPA™?
WPA, or Wi-Fi® Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired Equivalent
Privacy).
The 2 major improvements over WEP:
• Improved data encryption through the Temporal Key Integrity Protocol (TKIP). TKIP scrambles the keys using a
hashing algorithm and, by adding an integrity-checking feature, ensures that the keys haven’t been tampered
with. WPA2™ is based on 802.11i and uses Advanced Encryption Standard instead of TKIP.
• User authentication, which is generally missing in WEP, through the extensible authentication protocol (EAP).
WEP regulates access to a wireless network based on a computer’s hardware-specic MAC address, which is
relatively simple to be snied out and stolen. EAP is built on a more secure public-key encryption system to
ensure that only authorized network users can access the network.
WPA/WPA2-Personal uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric password
between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. This key must be the exact same key
entered on your wireless router or access point.
WPA/WPA2-Enterprise incorporates user authentication through the Extensible Authentication Protocol (EAP). EAP is built on
a more secure public key encryption system to ensure that only authorized network users can access the network.
29D-Link DWA-548 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2-Personal
Using the D-Link Utility
It is recommended to enable WPA/WPA2-Personal on your wireless router or access point before conguring your wireless
adapter. If you are joining an existing network, you will need to know the WPA/WPA2-Personal passphrase being used.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop.
2. Highlight the wireless network (SSID) you would like to connect to and
click Connect. If the network is using WPA/WPA2-Personal, the screen
(as shown to the bottom-right) will appear.
3. Enter the WPA/WPA2-Personal passphrase exactly as it is on your wireless
router or access point. Click the Show text in the password eld box to
see the passphrase. Unchecking it will hide it.
4. Click OK to connect to the network. Allow up to 30 seconds to connect.
If you would like to create a new network and enter the WPA/WPA2-Personal
settings, refer to the next page.
30D-Link DWA-548 User Manual
Section 4 - Wireless Security
It is recommended to enable WPA/WPA2-Personal on your wireless router or access point before conguring your wireless
adapter. Make sure you enter the passphrase exactly the same on all wireless devices.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop. Click on New to create a
new prole or highlight an existing prole and click Modify.
2. Select WPA/WPA2-Personal under Set Security Option.
3. Select TKIP, AES, or Auto.
4. Enter the passphrase exactly as it is on your wireless router or
access point.
5. Click OK to connect to the network. Allow up to 30 seconds to
connect.
31D-Link DWA-548 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2 Personal
Using Windows® 7
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your
wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.
2. The utility will display any available wireless networks in your area.
1. Click on the wireless icon in your system tray (lower-right corner).
32D-Link DWA-548 User Manual
Section 4 - Wireless Security
3. Highlight the wireless network (SSID) you would like to connect
to and click the Connect button.
If you get a good signal but cannot access the Internet, check your
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
4. The following window appears while your computer tries to
connect to the router.
33D-Link DWA-548 User Manual
Section 4 - Wireless Security
5. Enter the same security key or passphrase that is on your router
and click Connect. You can also connect by pushing the WPS
button on the router.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct.
The key or passphrase must be exactly the same as on the wireless
router.
34D-Link DWA-548 User Manual
Section 4 - Wireless Security
Congure WPA/WPA-Personal
Using Windows Vista®
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your
wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.
2. Highlight the wireless network (SSID) you would like to
connect to and click Connect.
1. Open the Windows Vista® Wireless Utility by right-clicking on
the wireless computer icon in your system tray (lower right
corner of screen). Select Connect to a network.
35D-Link DWA-548 User Manual
Section 4 - Wireless Security
3. Enter the same security key or passphrase that is on your router and
click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct. The
key or passphrase must be exactly the same as on the wireless router.
36D-Link DWA-548 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2-Personal
Using Windows® XP
It is recommended to enable WPA/WPA2-Personal on your wireless router or access point before conguring your wireless
adapter. If you are joining an existing network, you will need to know the WPA/WPA2-Personal key being used.
2. Highlight the wireless network (SSID) you would like to
connect to and click Connect.
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.
37D-Link DWA-548 User Manual
Section 4 - Wireless Security
3. The Wireless Network Connection box will appear. Enter the WPA/
WPA2-Personal 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/WPA2-Personal settings are
correct. The WPA/WPA2-Personal passphrase must be exactly the same as
on the wireless router or access point.
38D-Link DWA-548 User Manual
Section 4 - Wireless Security
Congure WPA/WPA2-Enterprise
Using the D-Link Utility
WPA/WPA2-Enterprise is for advanced users who are familiar with using a RADIUS server and setting up certicates.
1. Open the Wireless Connection Manager by double-clicking on the D-Link icon
on your desktop. Click on New to create a new prole or highlight an existing
prole and click Modify.
2. Select WPA/WPA2-Enterprise under Set Security Option and then select TKIP
or AES.
3. Next to EAP Type, select EAP-TLS or PEAP. Extensible Authentication Protocols
allow devices on the network to request authentication from the RADIUS server
in the network. All the devices on the network must use the same EAP type
when using a RADIUS server for authentication. Some RADIUS servers require
that the Validate Server eld be selected. Check this eld if your RADIUS server
requires validation.
4. Select an User Certicate from the drop-down menu.
5. Enter the login information required to authenticate.
6. Click Add to enter the IP address(es) of your RADIUS servers.
7. Click OK to save your settings.
39D-Link DWA-548 User Manual
Section 5 - Troubleshooting
1. How do I know if my adapter is installed properly?
Select the Hardware Tab.
Troubleshooting
This chapter provides solutions to problems that can occur during the installation and operation of the DWA-548. Read the
following descriptions if you are having problems. The examples below are illustrated in Windows® XP. If you have a dierent
operating system, the screenshots on your computer will look similar to the following examples.
Go to Start > My Computer > Properties.
40D-Link DWA-548 User Manual
Section 5 - Troubleshooting
Click the + sign next to Network Adapters.
Right-click on D-Link DWA-548 Desktop PCI Express Adapter.
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working properly. Click OK
to continue.
D-Link DWA-548 Wireless N 300 PCI Express Adapter
D-Link DWA-548
Wireless Desktop PCI Express Adapter
41D-Link DWA-548 User Manual
Section 5 - Troubleshooting
• Make sure that the SSID on the DWA-548 Desktop PCI Express Adapter is exactly the same as the SSID on the
Access Point or wireless router.
• Move the DWA-548 and Access Point or Wireless router into the same room and then test the wireless connection.
• Disable all security settings. (WEP, MAC Address Control, AES)
• Make sure that the Radio is not locked down to a dierent frequency
• Turn o your Access Point and the computer with the DWA-548. Turn on the Access Point, and then turn on the
computer with the DWA-548.
• Refresh the DWA-548 Utility
2. I cannot connect to the access point or the wireless router.
• Check to see if the DWA-548 desktop adapter is rmly inserted into the PCI Express slot of your laptop computer.
3. The DWA-548 Power and Link lights are not on.
• Reset the Access Point to its factory default settings and restore the DWA-548 Desktop PCI Express Adapter to
the factory default settings. The default settings are listed in the Conguration section in this manual.
4. I forgot my encryption key.
42D-Link DWA-548 User Manual
Section 5 - Troubleshooting
• Make sure that the DWA-548 Wireless Adapter is properly seated in the computer’s PCI Express slot.
• If Windows does not detect the hardware upon insertion of the adapter, make sure to completely remove drivers
that were previously loaded. To remove the drivers, do the following:
A. Under Tools > select Folder Options… > select View > under Hidden les and folders > select Show
hidden les and folders.
B. Uncheck Hide extension for known le types > click on Apply
C. Search for previously loaded driver les. Remove these les from the INF and SYSTEM (DRIVERS)
folders in the Windows directory. Note: Windows® XP will rename .inf les that have not received WHQL
certication into oem.inf les (e.g., oem1.inf).
5. The computer does not recognize the DWA-548 Wireless Adapter.
• Check that the LED indicators for the broadband modem are indicating normal activity. If not, there may be a
problem with the broadband connection.
• Check that the LED indicators on the wireless router are functioning properly. If not, check that the AC power
and Ethernet cables are rmly connected.
• Check that the IP Address, subnet mask, gateway, and DNS settings are correctly entered for the network.
6. The computer with the DWA-548 installed is unable to connect to the wireless network and/or the Internet.
43D-Link DWA-548 User Manual
Section 5 - Troubleshooting
• In Infrastructure mode, make sure the same Service Set Identier (SSID) is specied on the settings for the
wireless clients and access points. The SSID factory default setting for D-Link products is default.
• In Ad-Hoc mode, both wireless clients will need to have the same SSID. Please note that it might be necessary
to set up one client to establish a BSS (Basic Service Set) and wait briey before setting up other clients. This
prevents several clients from trying to establish a BSS at the same time, which can result in multiple singular
BSSs being established, rather than a single BSS with multiple clients associated to it.
• Check that the Network Connection for the wireless client is congured properly. Select AP (Infrastructure)
when connecting to an access point and select Ad-Hoc mode when connecting without an access point.
Double-click on the WLAN icon in the taskbar > click on Conguration to change the settings for the wireless
adapter.
•
If Security is enabled, make sure that the correct encryption keys are entered on both the DWA-548 and the access
point. Double-click on the WLAN icon in the taskbar > click Encryption. Check to see that the key selected is set
to the same key as other devices on the network.
• Move the DWA-548 and Access Point or Wireless router into the same room and then test the wireless connection.
• Change the channel of the Access Point.
• Move devices within the line of sight.
7. How can I troubleshoot distance issues using the DWA-548?
44D-Link DWA-548 User Manual
Section 5 - Troubleshooting
Windows® 7 Troubleshooting
Go to Start > Computer > Properties.
Select the Device Manager
45D-Link DWA-548 User Manual
Section 5 - Troubleshooting
Click the + sign next to Network Adapters.
Right-click on D-Link DWA-548 Desktop PCI Express Adapter.
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working properly. Click
OK to continue.
46D-Link DWA-548 User Manual
Appendix A - 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 oce environments, and public areas such as airports, coee shops
and universities. Innovative ways to utilize WLAN technology are helping people to work and communicate more eciently.
Increased mobility and the absence of cabling and other xed infrastructure have proven to be benecial 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.
Wireless Basics
47D-Link DWA-548 User Manual
Appendix A - Wireless Basics
What is Wireless?
Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio
frequency to connect wirelessly, so you have the freedom to connect computers anywhere in your home or oce network.
Why D-Link Wireless?
D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products.
D-Link delivers the performance you need at a price you can aord. D-Link has all the products you need to build your network.
How does wireless work?
Wireless works similar to how cordless phone work, through radio signals to transmit data from one point A to point B. But
wireless technology has restrictions as to how you can access the network. You must be within the wireless network range area
to be able to connect your computer. There are two dierent types of wireless networks Wireless Local Area Network (WLAN),
and Wireless Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
In a wireless local area network, a device called an Access Point (AP) connects computers to the network. The access point has
a small antenna attached to it, which allows it to transmit data back and forth over radio signals. With an indoor access point
as seen in the picture, the signal can travel up to 300 feet. With an outdoor access point the signal can reach out up to 30 miles
to serve places like manufacturing plants, industrial locations, college and high school campuses, airports, golf courses, and
many other outdoor venues.
48D-Link DWA-548 User Manual
Appendix A - Wireless Basics
Wireless Personal Area Network (WPAN)
Bluetooth is the industry standard wireless technology used for WPAN. Bluetooth devices in WPAN operate in a range up to
30 feet away.
Compared to WLAN the speed and wireless operation range are both less than WLAN, but in return it doesn’t use nearly as
much power which makes it ideal for personal devices, such as mobile phones, PDAs, headphones, laptops, speakers, and other
devices that operate on batteries.
Who uses wireless?
Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, oce, business,
D-Link has a wireless solution for it.
Home
• Gives everyone at home broadband access
• Surf the web, check email, instant message, and etc
• Gets rid of the cables around the house
• Simple and easy to use
Small Oce and Home Oce
• Stay on top of everything at home as you would at oce
• Remotely access your oce network from home
• Share Internet connection and printer with multiple computers
• No need to dedicate oce space
49D-Link DWA-548 User Manual
Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere not just at home or oce. People like the freedom of mobility and it’s becoming
so popular that more and more public facilities now provide wireless access to attract people. The wireless connection in public
places is usually called “hotspots”.
Using a D-Link wireless desktop adapter with your laptop, you can access the hotspot to connect to Internet from remote
locations like: Airports, Hotels, Coee Shops, Libraries, Restaurants, and Convention Centers.
Wireless network is easy to setup, but if you’re installing it for the rst time it could be quite a task not knowing where to start.
That’s why we’ve put together a few setup steps and tips to help you through the process of setting up a wireless network.
Tips
Here are a few things to keep in mind, when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best performance. Try to
place the router/access point as high as possible in the room, so the signal gets dispersed throughout your home. If you have
a two-story home, you may need a repeater to boost the signal to extend the range.
Eliminate Interference
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the router/access
point. This would signicantly reduce any interference that the appliances might cause since they operate on same frequency.
Security
Don’t let your next-door neighbors or intruders connect to your wireless network. Secure your wireless network by turning on
the WPA or WEP security feature on the router. Refer to product manual for detail information on how to set it up.
50D-Link DWA-548 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link wireless adapter and have established a wireless connection, 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® XP Users
• Click on Start > Run. In the run box type cmd and click OK.
• At the prompt, type ipcong and press Enter.
• This will display the IP address, subnet mask, and the default gateway of your adapter.
Windows® 7/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 ipcong and press Enter.
• This will display the IP address, subnet mask, and 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 rewall software programs may
block a DHCP request on newly installed adapters.
51D-Link DWA-548 User Manual
Appendix B - Networking Basics
Statically Assign an IP address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below:
Windows® XP Users
• Windows® XP - Click on Start > Control Panel. Make sure you are in Classic View. Double-click on the Network Connections icon.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter (or other adapter) which will be connected
to your router.
• Highlight Internet Protocol (TCP/IP) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same subnet as your network or LAN IP address on your router.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address 192.168.0.X where
X is a number between 2 and 99. Make sure that the number you choose is not in use on the
network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
52D-Link DWA-548 User Manual
Appendix B - Networking Basics
Windows® 7/Vista® Users
• Click on Start > Control Panel (make sure you are in Classic View). Double-click on the Network and Sharing Center icon. If you are using
Windows Vista®, click on Manage network connections along the left panel in the window. For Windows® 7, click on Change adapter
settings.
• Right-click on the Local Area Connection which represents your D-Link wireless network adapter which will be connected to your network.
• Highlight Internet Protocol Version 4 (TCP /IPv4) and click Properties.
• Click Use the following IP address and enter an IP address that is on the same
subnet as your network or LAN IP address on your router or network.
Example: If the router’s LAN IP address is 192.168.0.1, make your IP address
192.168.0.X where X is a number between 2 and 99. Make sure that the number
you choose is not in use on the network.
• Set Default Gateway the same as the LAN IP address of your router or gateway.
• Set Primary DNS the same as the LAN IP address of your router or gateway.
• The Secondary DNS is optional (you may enter a DNS server from your ISP).
• Click OK to save your settings.
Federal Communication Commission Interference Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the interference
by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
Industry Canada statement:
This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Ce dispositif est conforme à la norme CNR-210 d'Industrie Canada applicable aux appareils radio exempts de licence.
Son fonctionnement est sujet aux deux conditions suivantes: (1) le dispositif ne doit pas produire de brouillage
préjudiciable, et (2) ce dispositif doit accepter tout brouillage reçu, y compris un brouillage susceptible de provoquer
un fonctionnement indésirable.
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with minimum distance 20cm between the radiator & your body.
Déclaration d'exposition aux radiations:
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non
contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de
rayonnement et votre corps.
DETACHABLE ANTENNA USAGE
This device has been designed to operate with an antenna having a maximum gain of [2] dB. Antenna having a higher
gain is strictly prohibited per regulations of Industry Canada. The required antenna impedance is 50 ohms.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum
(or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users,
the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more
than that necessary for successful communication.
This radio transmitter (IC: 4216A-WA548A1 / Model: DWA-548A1) has been approved by Industry Canada to operate
with the antenna types listed below with the maximum permissible gain and required antenna impedance for each
antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated
for that type, are strictly prohibited for use with this device.
Ce dispositif a été conçu pour fonctionner avec une antenne ayant un gain maximal de dB [x]. Une antenne à gain
plus élevé est strictement interdite par les règlements d'Industrie Canada. L'impédance d'antenne requise est de 50
ohms.
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peutfonctionner avec une antenne
d'un type et d'un gain maximal (ou inférieur) approuvé pourl'émetteur par Industrie Canada. Dans le but de réduire les
risques de brouillage radioélectriqueà l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de
sorte que lapuissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire àl'établissement
d'une communication satisfaisante.
Le présent émetteur radio (IC: 4216A-WA548A1 / Modèle: DWA-548A1) a été approuvé par Industrie Canada pour
fonctionner avec les types d'antenne énumérés ci-dessous et ayant un gain admissible maximal et l'impédance
requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au
gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.
Approved antenna(s) list
Ant.
Manufacture
Model name Peak Gain (Net gain) Antenna
Type
Connecter Type
Chain
(0)
WHA YU
GROUP
C037-510982-A 2.0 dBi Dipole SMA Straight
Plug Reverse
Chain
(1)
WHA YU
GROUP
C037-510982-A 2.0 dBi Dipole SMA Straight
Plug Reverse

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