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28

7. Troubleshooting 

 
 

This chapter provides solutions to problems that can occur during the 
installation and operation of the DWL-900AP+ Wireless Access Point.  We 
cover various aspects of the network setup, including the network adapters.  
Please read the following if you are having problems.  

Note:  It is recommended that you use an Ethernet connection to 
configure the DWL-900AP+ Access Point. 

1.  The computer used to configure the DWL-900AP+ cannot access the 

Configuration menu. 

 

• 

Check that the 

Ethernet LED

 on the DWL-900AP+ is 

ON

.  If 

the 

LED

 is not 

ON

, check that the cable for the Ethernet 

connection is securely inserted. 

• 

Check that the Ethernet Adapter is working properly.  Please 
see item 3 (

Check that the drivers for the network 

adapters are installed properly

) in this 

Troubleshooting 

section to check that the drivers are loaded properly. 

• 

Check that the 

IP Address

 is in the same range and subnet 

as the DWL-900AP+.  Please see 

Checking the IP Address

 

in Windows XP

 in the 

Networking Basics

 section of this 

manual. 

Note:  The IP Address of the DWL-900AP+ is 192.168.0.50.  All the computers 

on the network must have a unique IP Address in the same range, e.g., 

192.168.0.x.  Any computers that have identical IP Addresses will not be 

visible on the network.  They must all have the same subnet mask, e.g., 

255.255.255.0 

• 

Do a 

Ping test 

to make sure that the DWL-900AP+ is 

responding.  Go to

 Start

>

Run

>Type 

Command

>Type 

ping 

192.168.0.50.  

A successful ping will show four replies.

 

 

Summary of Contents for AirPlus DWL-900AP+

Page 1: ...D Link AirPlus DWL 900AP 2 4 GHz Wireless Access Point Manual RevA B 100404 Building Networks for People ...

Page 2: ...uction 4 3 Wireless Basics 7 4 Getting Started 10 5 Using the Configuration Menu 12 6 Using the AirPlus AP Manager 24 7 Troubleshooting 28 8 Networking Basics 33 9 Technical Specifications 67 10 Contacting Technical Support 69 11 Warranty 70 ...

Page 3: ...ly with a different voltage rating than the one included with the DWL 900AP will cause damage and void the warranty for this product If any of the above items are missing please contact your reseller System Requirements Computer with Windows Macintosh or Linux based operating system with an installed Ethernet adapter Internet Explorer or Netscape Navigator version 4 0 or above with JavaScript enab...

Page 4: ...om that wireless networking delivers The DWL 900AP is compatible with most popular operating systems including Macintosh Linux and Windows and can be integrated into a large network This Manual is designed to help you connect the Access Point and the D Link AirPlus 2 4GHz Wireless Adapters into a network in Infrastructure mode Please take a look at the Getting Started section in this manual to see...

Page 5: ...02 11b networks Stronger Network Security with 256 bit WEP Encryption Supports 64 128 256 bit WEP encryption for higher level of security for your data and wireless communication than encryption found in existing 802 11b products Built in DHCP Server If enabled it will automatically assign IP addresses to wireless clients on the local network Web based interface for Managing and Configuring Easy t...

Page 6: ...ess Point has 3 LEDs as shown below Power LAN WLAN Power solid green light indicates connection LAN blinking green light indicates activity solid green light indicates connection WLAN blinking green light indicates wireless activity solid green light indicates connection ...

Page 7: ...s 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 Access Point AP i...

Page 8: ...d area D Link AirPlus Wireless Family of LAN products include Enhanced 2 4GHz Wireless Cardbus Adapters used with laptop computers DWL 650 Enhanced 2 4GHz Wireless PCI cards used with desktop computers DWL 520 Enhanced 2 4GHz Wireless Access Points DWL 900AP Enhanced 2 4GHz Wireless Broadband Router DI 614 The DWL 900AP will also work with D Link Air 802 11b wireless adapters which include 2 4GHz ...

Page 9: ...ial Gateways routers and computers 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 Try to make sure that the Access Points and adapters are positioned so that the signal will travel straight through a wall or ceiling for better reception 3 Building Materials make a difference A solid met...

Page 10: ...tomatically With a DHCP capable gateway router there is no need to manually assign an IP address Please note If you have a DHCP capable router such as the D Link DI 604 or DI 614 there is no need to assign an IP Address If you need to assign IP Addresses to the computers on the network please remember that the IP Address for each computer must be in the same IP Address range as all the computers i...

Page 11: ...omputer in your network you can install the D Link AirPlus DWL 520 wireless PCI adapter into an available PCI slot See the Quick Installation Guide included with the DWL 520 Please refer to the following sections of this manual for additional information about setting up a network Networking Basics learn how to check your IP Address share printers and files Using the Configuration Utility learn th...

Page 12: ...ou are not using a D Link router in your network you will need to assign a Static IP Address to the computer that you are using to configure the DWL 900AP within the IP Address Range of the DWL 900AP Assign a static IP address of 192 168 0 2 with subnet mask of 255 255 255 0 Please see Networking Basics in this manual for information on Assigning a Static IP Address Note Please write down the curr...

Page 13: ...ngs If you have changed the IP Address of the DWL 900AP to conform to a network other than one with D Link devices then input that IP Address in the web browser instead of the default IP Address shown Fig 5 2 Fig 5 3 Open the web browser Type in the IP Address of the Access Point Type admin in the User Name field Leave the Password blank Click OK Fig 5 1 The Configuration window will appear You ca...

Page 14: ...ble or Disable and they must share the same WEP key The WEP key is generated from ASCII or Hexadecimal entries that are either 64 128 or 256 bit in length When enabling encryption select the Key Type ASCII or Hexadecimal and then input the appropriate digits or letters You can create up to 4 keys Select the key you wish to use Click Help at any time for more information Click Apply if you have mad...

Page 15: ...DWl 900AP can be configured to perform in any one of five modes as a wireless access point as a point to point bridge with another access point as a point to multi point bridge as a wireless client or as a wireless repeater Home DHCP Advanced Mode MAC Address Media Access Control Address A unique hardware address that identifies a device on a network It is assigned at the factory and cannot be cha...

Page 16: ...rks Wireless Bridge This mode will allow you to connect two LANs together The wireless bridge will only work with another DWL 900AP Advanced Mode Site Survey Note If you use the DWL 900AP in Wireless Bridge Mode make sure that you enter the Ethernet MAC Address of the remote DWL900AP unit that you want to establish a wireless connection Multi point Bridge This mode will allow you to connect multip...

Page 17: ... 754 with inserted DWL 650 or AirPremier DWL 1000AP Note If you use the DWL 900AP in Wireless Client or Repeater Mode make sure that you enter the Ethernet Mac Address LAN MAC Address of the unit that you want to extend the wireless coverage Note The repeater function is available with at least firmware version 2 20 or above For the latest drivers and firmware downloads please go to www support dl...

Page 18: ... 16384 for the Delivery Traffic Indication Message DTIM A DTIM is a countdown informing clients of the next window for listening to broadcast and multicast messages Transmission Rate Select the transmission rate for the network Preamble Long Preamble is the default setting High traffic networks should use the shorter preamble type The preamble defines the length of the CRC block Cyclic Redundancy ...

Page 19: ...AC address and enter the MAC Address of the selected computer into the field above Or you can click on the pull down arrow next to the Connected PCs field select the computer from the list and click Clone The MAC address you have chosen will appear in the MAC Filter List Click Apply to save your choices Advanced Filters Tools Admin Change your password in this window It can be up to 14 characters ...

Page 20: ...Browse When you have selected the settings file click Load Click Restore to return to Factory Default Settings Tools Firmware Upgrade the firmware for the Access Point Click on the link to find upgrades to the firmware on the D Link website at http support dlink com After you have downloaded a firmware upgrade to your local drive click Browse Select the firmware and click Apply to complete the upg...

Page 21: ...to the computer designated with the specific IP address Status Device Info Status Log This page displays the current information for the DWL 900AP It will display the Ethernet and Wireless information Ethernet MAC Address IP Address Subnet Mask Gateway DHCP Server Wireless MAC Address SSID Encryption Channel AP mode First Page displays the first page of the Log Last Page displays the last page of ...

Page 22: ...Server function will download the DWL 900AP s log automatically to an IP address specified server Status Stats Fig 5 14 Displays the network traffic statistics for both received and transmitted communications through the Ethernet port and wireless connections associated with the Access Point ...

Page 23: ...Status Wireless Fig 5 15 Displays the list of computers that are connected to the DWL 900AP wirelessly ...

Page 24: ...ts in one easy view Please note that the AP Manger software is optional Begin the installation by inserting the DWL 900AP CD into your CD ROM The AP Manager is also available for download at support dlink com Click Install AirPlus AP Manager The following screen will appear Click Next Click Next Click Finish to complete installation ...

Page 25: ... current settings of the selected Access Point AP Settings The AP Settings screen will allow you to change the Access Point settings for the selected Access Point AP Settings Advanced Settings The Advanced Settings will allow you to adjust advanced settings for the selected Access Point ...

Page 26: ...ected Access Point WEP Settings The WEP Settings Screen will allow you to apply WEP Encryption to the selected Access Point WEP is short for Wired Equivalent Privacy It is a security protocol for wireless local area networks All devices on the wireless network must share the same WEP encryption settings in order to communicate ...

Page 27: ...Using the AirPlus AP Manager Firmware Upgrade The Firmware Upgrade screen will allow you to apply new version of the firmware to selected Access Point ...

Page 28: ... the Ethernet Adapter is working properly Please see item 3 Check that the drivers for the network adapters are installed properly in this Troubleshooting section to check that the drivers are loaded properly Check that the IP Address is in the same range and subnet as the DWL 900AP Please see Checking the IP Address in Windows XP in the Networking Basics section of this manual Note The IP Address...

Page 29: ...ge e g 192 168 0 x Each device must have a unique IP Address no two devices may have the same IP Address The subnet mask must be the same for all the computers on the network To check the IP Address assigned to the wireless adapter double click on the Local Area Connection icon in the taskbar select the Support tab and the IP Address will be displayed Please refer to Checking the IP Address in the...

Page 30: ...ed properly You may be using different network adapters than those illustrated here but this procedure will remain the same regardless of the type of network adapters you are using Go to Start Right click on My Computer Click Properties Select the Hardware Tab Click Device Manager ...

Page 31: ...bus 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 D Link AirPlus DWL 650 Wireless Cardbus Adapter D Link AirPlus DWL 650 Wireless Cardbus Adapter D Link AirPlus DWL 650 Wireless Cardbus Adapter ...

Page 32: ... D Link AirPlus products network together out of the box at the factory default settings To hard reset the D Link AirPlus DWL 900AP to Factory Default Settings please do the following Locate the Reset button on the back of the DWL 900AP Use a paper clip to press the Reset button Hold for about 5 seconds and then release After the DWL 900AP reboots this may take a few minutes it will be reset to th...

Page 33: ...r work using Microsoft Windows XP Note Please refer to websites such as http www homenethelp com and http www microsoft com windows2000 for information about networking computers using Windows 2000 ME or 98 Go to Start Control Panel Network Connections Select Set up a home or small office network When this screen appears Click Next ...

Page 34: ...llow all the instructions in this window Click Next In the following window select the best description of your computer If your computer connects to the Internet through a gateway router select the second option as shown Click Next ...

Page 35: ...Networking Basics Enter a Computer description and a Computer name optional Click Next Enter a Workgroup name All computers on your network should have the same Workgroup name Click Next ...

Page 36: ...king Basics Please wait while the Network Setup Wizard applies the changes When the changes are complete click Next Please wait while the Network Setup Wizard configures the computer This may take a few minutes ...

Page 37: ...at fits your needs In this example Create a Network Setup Disk has been selected You will run this disk on each of the computers on your network Click Next Insert a disk into the Floppy Disk Drive in this case drive A Format the disk if you wish and click Next ...

Page 38: ...d copies the files Please read the information under Here s how in the screen below After you complete the Network Setup Wizard you will use the Network Setup Disk to run the Network Setup Wizard once on each of the computers on your network To continue click Next ...

Page 39: ...tings will take effect when you restart the computer Click Yes to restart the computer You have completed configuring this computer Next you will need to run the Network Setup Disk on all the other computers on your network After running the Network Setup Disk on all your computers your new wireless network will be ready to use ...

Page 40: ...ndows XP Click Start in the lower left corner of the screen Right click on My Computer Select Properties and click Select the Computer Name Tab in the System Properties window You may enter a Computer description if you wish this field is optional To rename the computer and join a domain Click Change ...

Page 41: ...the IP Address in Windows XP 2000 Go to Start All Programs Accessories Command Prompt In this window enter the Computer name Select Workgroup and enter the name of the Workgroup All computers on your network must have the same Workgroup name Click OK ...

Page 42: ...dress in Windows XP 2000 Type Command Click OK Checking the IP Address in Windows XP 2000 Type ipconfig all at the prompt Press Enter All the configuration settings are displayed as shown below D Link AirPlus DWL 650 Wireless Cardbus Adapter ...

Page 43: ...enew to obtain a new IP Address Assigning a Static IP Address Note Residential Gateways Broadband Routers will automatically assign IP Addresses to the computers on the network using DHCP Dynamic Host Configuration Protocol technology If you are using a DHCP capable Gateway Router you will not need to assign Static IP Addresses If you are not using a DHCP capable Gateway Router or you need to assi...

Page 44: ...44 Networking Basics Assigning a Static IP Address Double click on Network Connections Right click on Local Area Connections Double click Properties ...

Page 45: ... subnet mask The IP Addresses on your network must be within the same range For example if one computer has an IP Address of 192 168 0 2 the other computers should have IP Addresses that are sequential like 192 168 0 3 and 192 168 0 4 The subnet mask must be the same for all the computers on the network Input your DNS server addresses Note If you are entering a DNS server you must enter the IP Add...

Page 46: ...to the Apple Menu and select System Preferences Click on Network Select Built in Ethernet in the Show pull down menu Select Manually in the Configure pull down menu Input the Static IP Address the Subnet Mask and the Router IP Address in the appropriate fields Click Apply Now ...

Page 47: ... Go to the Apple Menu and select System Preferences Click on Network Select Built in Ethernet in the Show pull down menu Select Using DHCP in the Configure pull down menu Click Apply Now The IP Address Subnet mask and the Router s IP Address will appear in a few seconds ...

Page 48: ...e Wireless Network Connection associated with the DWL 650 select Properties select Internet Protocol TCP IP click Properties Connecting to a Wireless Network with a Wireless Router or an Access Point using a DHCP server in Windows XP Select Obtain an IP address automatically if the Wireless Router or Access Point has DHCP server enabled Select Obtain DNS server address automatically Click OK Fig 8...

Page 49: ...cess Point IP address 192 168 0 51 Subnet mask 255 255 255 0 Default Gateway Enter the LAN IP address of the Wireless Router Select Use the following DNS server address Enter the LAN IP address of the Wireless Router Click OK Connecting to a Wireless Network in Windows 2000 Go to Start Settings Network and Dial up Connections Double click on the Local Area Connection associated with the DWL 650 se...

Page 50: ...lick OK Connecting to a Wireless Network with a Wireless Router or an Access Point using a static IP address in Windows 2000 Select Use the following IP address Input a static IP Address within the same IP Address range as the wireless router or the access point IP address 192 168 0 51 Subnet mask 255 255 255 0 Default Gateway 192 168 0 1 Select Use the following DNS server address Leave this sect...

Page 51: ...h the DWL 650 Click Properties Select Internet Protocol TCP IP Click Properties Connecting to a Wireless Network with a Wireless Router or an Access Point using a DHCP server in Windows Me and 98 Select the IP Address tab Then select Obtain an IP address automatically Select Detect connection to network media Click OK Fig 8 32 Fig 8 33 TCP IP D Link AirPlus DWL 650 Wireless Cardbus ...

Page 52: ...wireless router or access point IP address 192 168 0 51 Subnet mask 255 255 255 0 Select Detect connection to network media Click OK Checking the Wireless Connection by Pinging For Windows XP and 2000 Go to Start Run type cmd A window similar to Fig 9 25 will appear Type ping xxx xxx xxx xxx where xxx is the IP address of the Wireless Router or Access Point A good wireless connection will show fou...

Page 53: ...the Network Setup Wizard section at the beginning of Networking Basics you can use the Add Printer Wizard to add or share a printer on your network Whether you want to add a local printer a printer connected directly to one computer share an LPR printer a printer connected to a print server or share a network printer a printer connected to your network through a Gateway Router use the Add Printer ...

Page 54: ...uter A printer that is not shared on the network and is connected directly to one computer is called a local printer If you do not need to share your printer on a network follow these directions to add the printer to one computer Go to Start Printers and Faxes Click on Add a printer ...

Page 55: ...o this computer Deselect Automatically detect and install my Plug and Play printer if it has been selected Click Next Select Use the following port From the pull down menu select the correct port for your printer Most computers use the LPT1 port as shown in the illustration Click Next ...

Page 56: ...xt If the correct driver is not displayed insert the CD or floppy disk that came with your printer and click Have Disk At this screen you can change the name of the printer optional Click Next Select Yes to print a test page A successful printing will confirm that you have chosen the correct driver Click Next ...

Page 57: ...Networking Basics Adding a local printer Click Finish Click OK This screen gives you information about your printer When the test page has printed ...

Page 58: ...rk you can run the Add Printer Wizard on all the computers on your network Please follow these directions to use the Add Printer Wizard to share a printer on your network Go to Start Printers and Faxes A successful installation will display the printer icon as shown at right You have successfully added a local printer Go to Start Printers and Faxes ...

Page 59: ...Networking Basics Sharing a network printer Click on Add a Printer Click Next Select Network Printer Click Next ...

Page 60: ...60 Networking Basics Sharing a network printer Select Browse for a printer Click Next Select the printer you would like to share Click Next Click Finish ...

Page 61: ...r installation You have completed adding the printer To share this printer on your network Remember the printer name Run the Add Printer Wizard on all the computers on your network Make sure you have already run the Network Setup Wizard on all the network computers After you run the Add Printer Wizard on all the computers in the network you can share the printer ...

Page 62: ...Server such as the DP 101P Please make sure that you have run the Network Setup Wizard on all the computers on your network To share an LPR printer please follow these directions Go to Start Printers and Faxes Click on Add a Printer The screen to the right will display Click Next Select Local printer Click Next ...

Page 63: ...LPR printer Select Create a new port From the pull down menu select Standard TCP IP Port as shown Click Next Please read the instructions on this screen Click Next Enter the Printer IP Address and the Port Name as shown Click Next ...

Page 64: ...an LPR printer In this screen select Custom Click Settings Enter the Port Name and the Printer Name or IP Address Select LPR Enter a Queue Name if your Print Server Gateway has more than one port you will need a Queue name Click OK ...

Page 65: ...you information about your printer Click Finish Select the printer you are adding from the list of Printers Insert the printer driver disk that came with your printer Click Have Disk If the printer driver is already installed Select Keep existing driver Click Next ...

Page 66: ...e other computers on your network Click Next Select Yes to print a test page Click Next This screen will display information about your printer Click Finish to complete the addition of the printer Please run the Add Printer Wizard on all the computers on your network in order to share the printer Note You must run the Network Setup Wizard on all the computers on your network before you run the Add...

Page 67: ...ifications Standards IEEE 802 11b IEEE 802 3 IEEE 802 3u Ports 1 10 100Base T Ethernet RJ 45 UTP 1 Power 5V DC 2 0A Network Management Web Based browser with JavaScript Frequency Range 2 4 2 4835 GHz Direct Sequence Spread Spectrum DSSS Data Rates Mbps Channel 22 PBCC 11 PBCC CCK 5 5 PBCC CCK 2 Barker 1 Barker Data Security 64 128 256 bit WEP Wired Equivalent Privacy Encryption Access Control List...

Page 68: ...verse SMA Range Indoors up to 328 feet 100 meters Outdoors up to 1 312 feet 400 meters Temperature Operating 10ºC to 55ºC 14ºF to 131ºF Storing 20ºC to 65ºC 4ºF to 149ºF Humidity 5 95 non condensing Emissions FCC part 15b UL1950 3 ...

Page 69: ... period on this product U S customers can contact D Link technical support through our web site or by phone D Link Technical Support over the Telephone 877 453 5465 24 hours a day seven days a week D Link Technical Support over the Internet http support dlink com When contacting technical support please provide the following information Serial number of the unit Model number or product name Softwa...

Page 70: ...ects D Link s sole obligation shall be to replace the non conforming Software or defective media with software that substantially conforms to D Link s functional specifications for the Software Except as otherwise agreed by D Link in writing the replacement Software is provided only to the original licensee and is subject to the terms and conditions of the license granted by D Link for the Softwar...

Page 71: ...REPAIR REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON CONFORMING PRODUCT GOVERNING LAW This 3 Year Warranty shall be governed by the laws of the state of California Some states do not allow exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts so the foregoing limitations and exclusions may not apply This limited warranty provides specif...

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