Troubleshooting - D-Link Air Xpert DI-774 Manual

Troubleshooting

This Chapter provides solutions to problems that can occur during the installation and
operation of the DI-774 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-774 Wireless Broadband Router.
1.The computer used to configure the DI-774 cannot access the
Configuration menu.
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Check that the Ethernet LED on the DI-774 is ON. If the
LED is not ON, check that the cable for the Ethernet
connection is securely inserted.
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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.
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Check that the IP Address is in the same range and subnet
as the DI-774. Please see Checking the IP Address in
Windows XP in the Networking Basics section of this
manual.
Note: The IP Address of the DI-774 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
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Do a Ping test to make sure that the DI-774 is responding.
Go to Start>Run>Type Command>Type ping 192.168.0.1.
A successful ping will show four replies.
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Note: If you have
changed the default IP
Address, make sure to
ping the correct IP Ad-
dress assigned to the
DI-774.
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
Poi n t . T o c h e c k t h i s c o n n e c t i o n :
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.
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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-774 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.)
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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.)
Right-click on the Local Area Connection icon
default
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