Troubleshooting
This Chapter provides solutions to problems that can occur during the installation and operation of the DI-524 Wireless Broadband Router. 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 DI-524 Wireless Broadband Router.
1.The computer used to configure the DI-524 cannot access the Configuration menu.
- Check that the Ethernet LED on the DI-524 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 DI-524. Please see Checking the IP Address in Windows XP in the Networking Basics section of this manual.
Note: The IP Address of the DI-524 is 192.168.0.1. 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 DI-524 is responding. Go to Start>Run>Type Command>Type ping 192.168.0.1. A successful ping will show four replies.
Note: If you have changed the default IP Address, make sure to ping the correct IP Address assigned to the DI-524.
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Troubleshooting
2. The wireless client cannot access the Internet in the Infrastructure mode.
Make sure the wireless client is associated and joined with the correct Access Point. To check this connection: Right-click on the Local Area Connection icon in the taskbar> select View Available Wireless Networks. The Connect to Wireless Network screen will appear. Please make sure you have selected the
Check that the IP Address assigned to the wireless adapter is within the same IP Address range as the access point and gateway. (Since the DI-524 has an IP Address of 192.168.0.1, wireless adapters must have an IP Address in the same range, 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 Networking Basics section of this manual.)
If it is necessary to assign a Static IP Address to the wireless adapter, please refer to the appropriate section in Networking Basics. If you are entering a DNS Server address you must also enter the Default Gateway Address. (Remember that if you have a DHCP-capable router, you will not need to assign a Static IP Address. See **Networking Basics: Assigning a Static IP Address.)*
Troubleshooting
3. Check that the drivers for the network adapters are installed 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 > My Computer > Properties.
■ Select the Hardware Tab.
■ Click Device Manager.
Troubleshooting
Double-click on Network Adapters.
Right-click on D-Link AirPlus DWL-G650 Wireless Cardbus Adapter (In this example we use the DWL-G650; you may be using other network adapters, but the procedure will remain the same.)
Select Properties to check that the drivers are installed properly.
Look under Device Status to check that the device is working properly.
Click OK.
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Troubleshooting
4. What variables may cause my wireless products to lose reception?
D-Link products let you access your network from virtually anywhere you want. However, the positioning of the products within your environment will affect the wireless range. Please refer to Installation Considerations in the Wireless Basics section of this manual for further information about the most advantageous placement of your D-Link wireless products.
5. Why does my wireless connection keep dropping?
Antenna Orientation- Try different antenna orientations for the DI-524. Try to keep the antenna at least 6 inches away from the wall or other objects.
If you are using 2.4GHz cordless phones, X-10 equipment or other home security systems, ceiling fans, and lights, your wireless connection will degrade dramatically or drop altogether. Try changing the Channel on your Router, Access Point and Wireless adapter to a different Channel to avoid interference.
Keep your product away (at least 3-6 feet) from electrical devices that generate RF noise, like microwaves, Monitors, electric motors, etc.
6. Why can’t I get a wireless connection?
If you have enabled Encryption on the DI-524, you must also enable encryption on all wireless clients in order to establish a wireless connection.
For 802.11g, the Encryption settings are: 64 or 128 bit. Make sure that the encryption bit level is the same on the Router and the Wireless Client.
Make sure that the SSID on the Router and the Wireless Client are exactly the same. If they are not, wireless connection will not be established.
Move the DI-524 and the wireless client into the same room and then test the wireless connection.
Disable all security settings. (WEP, MAC Address Control)
Troubleshooting
6. Why can’t I get a wireless connection? (continued)
Turn off your DI-524 and the client. Turn the DI-524 back on again, and then turn on the client.
Make sure that all devices are set to Infrastructure mode.
Check that the LED indicators are indicating normal activity. If not, check that the AC power and Ethernet cables are firmly connected.
Check that the IP Address, subnet mask, gateway, and DNS settings are correctly entered for the network.
If you are using 2.4GHz cordless phones, X-10 equipment or other home security systems, ceiling fans, and lights, your wireless connection will degrade dramatically or drop altogether. Try changing the Channel on your DI-524, and on all the devices in your network to avoid interference.
Keep your product away (at least 3-6 feet) from electrical devices that generate RF noise, like microwaves, Monitors, electric motors, etc.
7. I forgot my encryption key.
Reset the DI-524 to its factory default settings and restore the other devices on your network to their default settings. You may do this by pressing the Reset button on the back of the unit. You will lose the current configuration settings.
Troubleshooting
8. Resetting the DI-524 to Factory Default Settings
After you have tried other methods for troubleshooting your network, you may choose to Reset the DI-524 to the factory default settings. Remember that D-Link AirPlus G products network together, out of the box, at the factory default settings.
To hard-reset the DI-524 to Factory Default Settings, please do the following:
■ Locate the Reset button on the back of the DI-524.
■ Use a paper clip to press the Reset button.
■ Hold for about 10 seconds and then release.
■ After the DI-524 reboots (this may take a few minutes), it will be reset to the factory Default settings.
Technical Specifications
Standards
- IEEE 802.11g
- IEEE 802.11b
- IEEE 802.3
- IEEE 802.3u
VPN Pass Through/ Multi-Sessions
- PPTP
- L2TP
- IPSec
Device Management
- Web-Based- Internet Explorer v6 or later; Netscape Navigator v6 or later; or other Java-enabled browsers
- DHCP Server and Client
Advanced Firewall Features
- NAT with VPN Passthrough (Network Address Translation)
- MAC Filtering
- IP Filtering
- URL Filtering
- Domain Blocking
- Scheduling
Wireless Operating Range
- Indoors – up to 328 feet (100 meters)
- Outdoors – up to 1312 feet (400 meters)
Operating Temperature
- 32°F to 131°F (0°C to 55°C)
Humidity:
- 95% maximum (non-condensing)
Safety and Emissions:
- FCC
Wireless Frequency Range:
- 2.4GHz to 2.462GHz
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Technical Specifications
LEDs:
- Power
- WAN
- LAN (10/100)
- WLAN (Wireless Connection)
Physical Dimensions:
- L = 5.6 inches (142mm)
- W = 4.3 inches (109mm)
- H = 1.2 inches (31mm)
Wireless Transmit Power:
- 15dBm ?2dB
Security:
- 802.1x
- WPA- WiFi Protected Access (WEP with TKIP, MIC, IV Expansion, Shared Key Authentication)
External Antenna Type:
- Single detachable reverse SMA
Modulation Technology:
- Orthogonal Frequency Division Multiplexing (OFDM)
Power Input:
- Ext. Power Supply DC 5V, 2.5A
Weight:
- 7.8 oz. (0.22kg)
Warranty:
- 3 year
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Technical Specifications
Wireless Data Rates* with Automatic Fallback:
- 54 Mbps
- 48 Mbps
- 36 Mbps
- 24 Mbps
- 18 Mbps
- 12 Mbps
- 11 Mbps
- 9 Mbps
- 6 Mbps
- 5.5 Mbps
- 2 Mbps
- 1 Mbps
Receiver Sensitivity:
- 54Mbps OFDM, 10% PER, -68dBm
- 48Mbps OFDM, 10% PER, -68dBm
- 36Mbps OFDM, 10% PER, -75dBm
- 24Mbps OFDM, 10% PER, -79dBm
- 18Mbps OFDM, 10% PER, -82dBm
- 12Mbps OFDM, 10% PER, -84dBm
- 11Mbps CCK, 8% PER, -82dBm
- 9Mbps OFDM, 10% PER, -87dBm
- 6Mbps OFDM, 10% PER, -88dBm
- 5.5Mbps CCK, 8% PER, -85dBm
- 2Mbps QPSK, 8% PER, -86dBm
- 1Mbps BPSK, 8% PER, -89dBm
*Maximum wireless signal rate based on IEEE Standard 802.11g specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead lower actual data throughput rate.
Frequently Asked Questions
Why can’t I access the web based configuration?
When entering the IP Address of the DI-524 (192.168.0.1), you are not connecting to 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.
To resolve difficulties accessing a web utility, please follow the steps below.
Step 1 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.
What type of cable should I be using?
The following connections require a Crossover Cable: Computer to Computer Computer to Uplink Port Computer to Access Point Computer to Print Server Computer/XBOX/PS2 to DWL-810 Computer/XBOX/PS2 to DWL-900AP+ Uplink Port to Uplink Port (hub/switch) Normal Port to Normal Port (hub/switch)
The following connections require a Straight-through Cable: Computer to Residential Gateway/Router Computer to Normal Port (hub/switch) Access Point to Normal Port (hub/switch) Print Server to Normal Port (hub/switch) Uplink Port to Normal Port (hub/switch)
Rule of Thumb: "If there is a link light, the cable is right."
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Why can’t I access the web based configuration? (continued)
What type of cable should I be using? (continued)
What´s the difference between a crossover cable and a straight-through cable?
The wiring in crossover and straight-through cables are different. The two types of cable have different purposes for different LAN configurations. EIA/TIA 568A/568B define the wiring standards and allow for two different wiring color codes as illustrated in the following diagram.
The wires with colored backgrounds may have white stripes and may be denoted that way in diagrams found elsewhere.
How to tell straight-through cable from a crossover cable:
The main way to tell the difference between the two cable types is to compare the wiring order on the ends of the cable. If the wiring is the same on both sides, it is straight-through cable. If one side has opposite wiring, it is a crossover cable.
All you need to remember to properly configure the cables is the pinout order of the two cable ends and the following rules:
A straight-through cable has identical ends A crossover cable has different ends
It makes no functional difference which standard you follow for straight-through cable ends, as long as both ends are the same. You can start a crossover cable with either standard as long as the other end is the other standard. It makes no functional difference which end is which. The order in which you pin the cable is important. Using a pattern other than what is specified in the above diagram could cause connection problems.
When to use a crossover cable and when to use a straight-through cable: Computer to Computer – Crossover Computer to an normal port on a Hub/Switch – Straight-through Computer to an uplink port on a Hub/Switch - Crossover Hub/Switch uplink port to another Hub/Switch uplink port – Crossover Hub/Switch uplink port to another Hub/Switch normal port - Straight-through
Why can´t I access the web based configuration? (continued)
Step 2 Disable any Internet security software running on the computer. Software firewalls like Zone Alarm, Black Ice, Sygate, Norton Personal Firewall, etc. might block access to the configuration pages. Check the help files included with your firewall software for more information on disabling or configuring it.
Step 3 Configure your Internet settings.
Go to Start>Settings>Control Panel. Double click the Internet Options Icon. From the Security tab, click the button to restore the settings to their defaults.
Click to the Connection tab and set the dial-up option to Never Dial a Connection. Click the LAN Settings button.
Nothing should be checked. Click OK.
Go to the Advanced tab and click the button to restore these settings to their defaults.
Click OK. Go to the desktop and close any open windows.
Why can’t I access the web based configuration? (continued)
Step 4 Check your IP Address. Your computer must have an IP Address in the same range of the device you are attempting to configure. Most D-Link devices use the 192.168.0.X range.
How can I find my IP Address in Windows 95, 98, or ME?
Step 1 Click on Start, then click on Run.
Step 2 The Run Dialogue Box will appear. Type winipcfg in the window as shown then click OK.
Step 3 The IP Configuration window will appear, displaying your Ethernet Adapter Information.
■ Select your adapter from the drop down menu.
If you do not see your adapter in the drop down menu, your adapter is not properly installed.
Step 4 After selecting your adapter, it will display your IP Address, subnet mask, and default gateway.
Step 5 Click OK to close the IP Configuration window.
Why can't I access the web based configuration? (continued)
Step 4 (continued) Check your IP Address. Your computer must have an IP Address in the same range of the device you are attempting to configure. Most D-Link devices use the 192.168.0.X range.
How can I find my IP Address in Windows 2000/XP?
Step 1 Click on Start and select Run.
Step 2 Type cmd then click OK.
Step 3 From the Command Prompt, enter ipconfig. It will return your IP Address, subnet mask, and default gateway.
Step 4 Type exit to close the command prompt.
Why can´t I access the web based configuration? (continued)
Step 4 (continued) Check your IP Address. Your computer must have an IP Address in the same range of the device you are attempting to configure. Most D-Link devices use the 192.168.0.X range.
Make sure you take note of your computer’s Default Gateway IP Address. The Default Gateway is the IP Address of the D-Link router. By default, it should be 192.168.0.1.
How can I assign a Static IP Address in Windows XP?
Click on Start > Control Panel > Network and Internet Connections > Network connections.
Step 2 See Step 2 for Windows 2000 and continue from there.
How can I assign a Static IP Address in Windows 2000?
Step 1 Right-click on My Network Places and select Properties.
Step 2 Right-click on the Local Area Connection which represents your network card and select Properties.
Highlight Internet Protocol (TCP/IP) and click Properties.
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Why can´t I access the web based configuration? (continued)
How can I assign a Static IP Address in Windows 2000? (continued)
Click Use the following IP Address and enter an IP Address that is on the same subnet as the 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 = 2-99. Make sure that the number you choose is not in use on the network.
Set the Default Gateway to be the same as the LAN IP Address of your router (192.168.0.1).
Set the Primary DNS to be the same as the LAN IP address of your router (192.168.0.1).
The Secondary DNS is not needed or enter a DNS server from your ISP.
Click OK twice. You may be asked if you want to reboot your computer. Click Yes.
How can I assign a Static IP Address in Windows 98/Me?
Step 1 From the desktop, right-click on the Network Neigborhood icon (Win ME - My Network Places) and select Properties.
Highlight TCP/IP and click the Properties button. If you have more than 1 adapter, then there will be a TCP/IP “Binding” for each adapter. Highlight TCP/IP > (your network adapter) and then click Properties.
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Why can't I access the web based configuration? (continued)
How can I assign a Static IP Address in Windows 98/Me? (continued)
Step 2 Click Specify an IP Address.
Enter in an IP Address that is on the same subnet as the 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 between 2-99. Make sure that the number you choose is not in use on the network.
Step 3 Click on the Gateway tab.
Enter the LAN IP Address of your router here (192.168.0.1).
Click Add when finished.
Step 4 Click on the DNS Configuration tab.
Click Enable DNS. Type in a Host (can be any word). Under DNS server search order, enter the LAN IP Address of your router (192.168.0.1). Click Add.
Step 5 Click OK twice.
When prompted to reboot your computer, click Yes.
After you reboot, the computer will now have a static, private IP Address.
Step 5 Access the web management. Open your web browser and enter the IP Address of your D-Link device in the address bar. This should open the login page for the web management. Follow instructions to login and complete the configuration.
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How can I setup my router to work with a Cable modem connection?
Dynamic Cable connection
(IE AT&T-BI, Cox, Adelphia, Rogers, Roadrunner, Charter, and Comcast).
Note: Please configure the router with the computer that was last connected directly to the cable modem.
Step 1 Log into the web based configuration by typing in the IP Address of the router (default:192.168.0.1) in your web browser. The username is admin (all lowercase) and the password is blank (nothing).
Step 2 Click the Home tab and click the WAN button. Dynamic IP Address is the default value, however, if Dynamic IP Address is not selected as the WAN type, select Dynamic IP Address by clicking on the radio button. Click Clone Mac Address. Click on Apply and then Continue to save the changes.
How can I setup my router to work with a Cable modem connection? (continued)
Step 3 Power cycle the cable modem and router:
Turn the cable modem off (first). Turn the router off Leave them off for 2 minutes.** Turn the cable modem on (first). Wait until you get a solid cable light on the cable modem. Turn the router on. Wait 30 seconds.
** If you have a Motorola (Surf Board) modem, leave off for at least 5 minutes.
Step 4 Follow step 1 again and log back into the web configuration. Click the Status tab and click the Device Info button. If you do not already have a public IP Address under the WAN heading, click on the DHCP Renew and Continue buttons.
Static Cable Connection
Step 1 Log into the web based configuration by typing in the IP Address of the router (default:192.168.0.1) in your web browser. The username is admin (all lowercase) and the password is blank (nothing).
Step 2 Click the Home tab and click the WAN button. Select Static IP Address and enter your static settings obtained from the ISP in the fields provided.
If you do not know your settings, you must contact your ISP.
Step 3 Click on Apply and then click Continue to save the changes.
Step 4 Click the Status tab and click the Device Info button. Your IP Address information will be displayed under the WAN heading.
How can I setup my router to work with Earthlink DSL or any PPPoE connection?
Make sure you disable or uninstall any PPPoE software such as WinPoet or Enternet 300 from your computer or you will not be able to connect to the Internet.
Step 1 Upgrade Firmware if needed.
(Please visit the D-Link tech support website at: http://support.dlink.com for the latest firmware upgrade information.)
Step 2 Take a paperclip and perform a hard reset. With the unit on, use a paperclip and hold down the reset button on the back of the unit for 10 seconds. Release it and the router will recycle, the lights will blink, and then stabilize.
Step 3 After the router stabilizes, open your browser and enter 192.168.0.1 into the address window and hit the Enter key. When the password dialog box appears, enter the username admin and leave the password blank. Click OK.
If the password dialog box does not come up repeat Step 2.
Note: Do not run the Wizard.
Step 4 Click on the WAN tab on left-hand side of the screen. Select PPPoE.
Step 5 Select Dynamic PPPoE (unless your ISP supplied you with a static IP Address).
Step 6 In the username field enter ELN/username@earthlink.net and your password, where username is your own username.
For SBC Global users, enter username@sbcglobal.net. For Ameritech users, enter username@ameritech.net. For BellSouth users, enter username@bellsouth.net. For Mindspring users, enter username@mindspring.com. For most other ISPs, enter username.
Step 7 Maximum Idle Time should be set to zero. Set MTU to 1492, unless specified by your ISP, and set Autoreconnect to Enabled.
Note: If you experience problems accessing certain websites and/or email issues, please set the MTU to a lower number such as 1472, 1452, etc. Contact your ISP for more information and the proper MTU setting for your connection.
How can I setup my router to work with Earthlink DSL or any PPPoE connection? (continued)
Step 8 Click Apply. When prompted, click Continue. Once the screen refreshes, unplug the power to the D-Link router.
Step 9 Turn off your DSL modem for 2-3 minutes. Turn back on. Once the modem has established a link to your ISP, plug the power back into the D-Link router. Wait about 30 seconds and log back into the router.
Step 10 Click on the Status tab in the web configuration where you can view the device info. Under WAN, click Connect. Click Continue when prompted. You should now see that the device info will show an IP Address, verifying that the device has connected to a server and has been assigned an IP Address.
Can I use my D-Link Broadband Router to share my Internet connection provided by AOL DSL Plus?
In most cases yes. AOL DSL+ may use PPPoE for authentication bypassing the client software. If this is the case, then our routers will work with this service. Please contact AOL if you are not sure.
To set up your router:
Step 1 Log into the web-based configuration (192.168.0.1) and configure the WAN side to use PPPoE.
Step 2 Enter your screen name followed by @aol.com for the user name. Enter your AOL password in the password box.
Step 3 You will have to set the MTU to 1400. AOL DSL does not allow for anything higher than 1400.
Step 4 Apply settings.
Step 5 Recycle the power to the modem for 1 minute and then recycle power to the router. Allow 1 to 2 minutes to connect.
If you connect to the Internet with a different internet service provider and want to use the AOL software, you can do that without configuring the router's firewall settings. You need to configure the AOL software to connect using TCP/IP. Go to http://www.aol.com for more specific configuration information of their software.
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How do I open ports on my router?
To allow traffic from the internet to enter your local network, you will need to open up ports or the router will block the request.
Step 1 Open your web browser and enter the IP Address of your D-Link router (192.168.0.1). Enter username (admin) and your password (blank by default).
Step 2 Click on Advanced on top and then click Virtual Server on the left side.
Step 3 Check Enabled to activate entry.
Step 4 Enter a name for your virtual server entry.
Step 5 Next to Private IP, enter the IP Address of the computer on your local network that you want to allow the incoming service to.
Step 6 Choose Protocol Type - either TCP, UDP, or both. If you are not sure, select both.
Step 7 Enter the port information next to Private Port and Public Port. The private and public ports are usually the same. The public port is the port seen from the WAN side, and the private port is the port being used by the application on the computer within your local network.
Step 8 Enter the Schedule information.
Step 9 Click Apply and then click Continue.
Note: Make sure DMZ host is disabled. If DMZ is enabled, it will disable all Virtual Server entries.
Because our routers use NAT (Network Address Translation), you can only open a specific port to one computer at a time. For example: If you have 2 web servers on your network, you cannot open port 80 to both computers. You will need to configure 1 of the web servers to use port 81. Now you can open port 80 to the first computer and then open port 81 to the other computer.
What is DMZ?
Demilitarized Zone: In computer networks, a DMZ (demilitarized zone) is a computer host or small network inserted as a neutral zone between a company’s private network and the outside public network. It prevents outside users from getting direct access to a server that has company data. (The term comes from the geographic buffer zone that was set up between North Korea and South Korea following the UN police action in the early 1950s.) A DMZ is an optional and more secure approach to a firewall and effectively acts as a proxy server as well.
In a typical DMZ configuration for a small company, a separate computer (or host in network terms) receives requests from users within the private network for access to Web sites or other companies accessible on the public network. The DMZ host then initiates sessions for these requests on the public network. However, the DMZ host is not able to initiate a session back into the private network. It can only forward packets that have already been requested.
Users of the public network outside the company can access only the DMZ host. The DMZ may typically also have the company’s Web pages so these could be served to the outside world. However, the DMZ provides access to no other company data. In the event that an outside user penetrated the DMZ hosts security, the Web pages might be corrupted but no other company information would be exposed. D-Link, a leading maker of routers, is one company that sells products designed for setting up a DMZ
How do I configure the DMZ Host?
The DMZ feature allows you to forward all incoming ports to one computer on the local network. The DMZ, or Demilitarized Zone, will allow the specified computer to be exposed to the Internet. DMZ is useful when a certain application or game does not work through the firewall. The computer that is configured for DMZ will be completely vulnerable on the Internet, so it is suggested that you try opening ports from the Virtual Server or Firewall settings before using DMZ.
Step 1 Find the IP address of the computer you want to use as the DMZ host.
To find out how to locate the IP Address of the computer in Windows XP/2000/ME/9x or Macintosh operating systems please refer to Step 4 of the first question in this section (Frequently Asked Questions).
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How do I configure the DMZ Host? (continued)
Step 2 Log into the web based configuration of the router by typing in the IP Address of the router (default:192.168.0.1) in your web browser. The username is admin (all lowercase) and the password is blank (nothing).
Step 3 Click the Advanced tab and then click on the DMZ button. Select Enable and type in the IP Address you found in step 1.
Step 4 Click Apply and then Continue to save the changes.
Note: When DMZ is enabled, Virtual Server settings will still be effective. Remember, you cannot forward the same port to multiple IP Addresses, so the Virtual Server settings will take priority over DMZ settings.
