D Link DI524C1 User Manual
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
correct available network, as shown in the illustrations below.
default
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.)
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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.
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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.
D-Link AirPlus DWL-650
D-Link AirPlus DWL-G650 Wireless Cardbus Adapter
Look under Device
Status to check that the
device is working
properly.
Click OK.
D-Link AirPlus DWL-650 Wireless Cardbus Adapter
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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 secu-
rity 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 802.11b, the Encryption settings are: 64 or 128 bit. Make sure that the en-
cryption 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)
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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 cor-
rectly 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.
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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.
Reset
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.
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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
32ºF to 131ºF (0ºC to 55ºC)
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
Security:
802.1x
WPA- WiFi Protected Access
(WEP with TKIP, MIC, IV Expansion, Shared Key Authentication)
External Antenna Type:
± 2dB
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
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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
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.
Verify physical connectivity by checking for solid link lights on the device. If
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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Frequently Asked Questions (continued)
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
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Frequently Asked Questions (continued)
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 dialup 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
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