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66
DI-624S User’s Manual
D-Link Systems, Inc.
Troubleshooting
Troubleshooting
This Chapter provides solutions to problems that can occur during the installation and operation of
the DI-624S 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: If you have changed the default IP
Address, make sure to ping the correct IP
Address assigned to the DI-624S.
Note:
It is recommended that you use an Ethernet connection to
configure the DI-624S Wireless Broadband Router.
1.
The computer used to configure the DI-624S cannot access the Configuration menu.
Check that the
Ethernet LED
on the DI-624S 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-624S.
Please
see
Checking the IP Address
in Windows XP
in the
Networking Basics
section of this
manual.
Note:
The IP Address of the DI-624S 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-624S is responding.
Go to
Start
>
Run
>Type
Command
>Type
A successful ping will show four replies.
Page 67 / 106
67
DI-624S User’s Manual
D-Link Systems, Inc.
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.
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-624S 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.
)
default
Page 68 / 106
68
DI-624S User’s Manual
D-Link Systems, Inc.
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.
Click
Device Manager
Select
the
Hardware Tab
Go to
Start > My Computer
(Right-click)
>
Properties
Page 69 / 106
69
DI-624S User’s Manual
D-Link Systems, Inc.
Troubleshooting
Double-click on
Network Adapters
Right-click on
D-Link
Air
Plus 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
Page 70 / 106
70
DI-624S User’s Manual
D-Link Systems, Inc.
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
posi
tioning 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?
6.
Why can’t I get a wireless connection?
If you have enabled Encryption on the DI-624S, you must also enable encryption on all wireless clients
in order to establish a wireless connection.
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.
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.
Move the DI-624S and the wireless client into the same room and then test the wireless
connection.
Disable all security settings. (WEP, MAC Address Control)
Antenna Orientation- Try different antenna orientations for the DI-624S.
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.

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