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Click
OK
twice to confirm and save your changes, and then close the Control Panel.
Assigning static Internet information to your PCs
If you are a typical user, you will not need to assign static Internet information to your
LAN PCs because your ISP automatically assigns this information for you.
In some cases however, you may want to assign Internet information to some or all of
your PCs directly (often called “statically”), rather than allowing the device
to assign it.
This option may be desirable (but not required) if:
You have obtained one or more public IP addresses that you want to always
associate with specific computers (for example, if you are using a computer as
a public web server).
You maintain different subnets on your LAN (subnets are described in
Appendix B).
Before you begin, you must have the following information available:
The IP address and subnet mask of each PC
The IP address of the default gateway for your LAN. In most cases, this is the
address assigned to the LAN port on the device. By default, the LAN port is
assigned the IP address 192.168.1.1. (You can change this number or another
number can be assigned by your ISP.)
The IP address of your ISP’s Domain Name System (DNS) server.
On each PC to which you want to assign static information, follow the instructions
relating only to checking for and/or installing the IP protocol. Once it is installed,
continue to follow the instructions for displaying each of the Internet Protocol (TCP/IP)
properties. Instead of enabling dynamic assignment of the IP addresses for the
computer, DNS server and default gateway, click the radio buttons that enable you to
enter the information manually.
Note
Your PCs must have IP addresses that place them in the same
subnet as the
device
’s LAN port.
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Configuring Wireless PCs
You need to configure the operating system installed on your Wireless PCs using the
same procedure described for Configuring Ethernet PCs section.
Positioning the wireless PCs
The wireless network cards used determine the maximum distance between your
wireless PCs and your device. Guidelines on positioning the hardware components of
your wireless network should be provided by your network card provider.
Wireless PC cards and drivers
Each PC on your wireless LAN must be fitted with a wireless access card. You must
also install the corresponding driver files for your particular wireless card on your PC.
You should receive driver files and instructions on how to install them together with
your wireless card.
Configuring PC access to your Wireless device
Before you start configuring your Wireless PC, you must ensure that you have:
A Wireless access card for each of the PCs
Corresponding wireless access card driver software files
The configuration steps below will vary depending on both the operating system and
wireless card installed on the PC. These steps provide a basic outline, however you
should refer to the documentation provided with your wireless access card for specific
instructions.
To configure Wireless PCs:
Install the wireless access card.
Install the wireless driver software files.
Configure the following wireless parameters on each of the wireless PCs:
Set the adapter to use infrastructure mode. This configures the PCs to access each
other and the Internet via the device.
Configure the SSID and channel to match the SSID and channel previously
configured on the device.
Your wireless network can now communicate with the Internet via the device.
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X5522r-P3 / X5527r-P3 / X5568r-P3 / X5567r-P3
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Appendix B - Troubleshooting
This appendix suggests solutions for problems you may encounter in installing or
using the device, and provides instructions for using several IP utilities to diagnose
problems.
Contact Customer Support if these suggestions do not resolve the problem.
Troubleshooting Suggestions
Problem
Troubleshooting Suggestion
LEDs
Power LED does not illuminate
after product is turned on.
Verify that you are using the power cable
provided with the device and that it is securely
connected to the
device and a wall
socket/power strip.
LINK LAN LED does not
illuminate after Ethernet cable is
attached.
Verify that the Ethernet cable is securely
connected to your LAN hub or PC and to the
device. Make sure the PC and/or hub is turned
on.
Verify that your cable is sufficient for your
network requirements. A 100 Mbit/sec network
(10BaseTx) should use cables labeled CAT 5.
A 10Mbit/sec network may tolerate lower
quality cables.
Internet Access
My PC cannot access the Internet
Run a health check on your device. Use the
ping utility (discussed in the following section)
to check whether your PC can communicate
with the device’s LAN IP address (by default
192.168.2.1). If it cannot, check the Ethernet
cabling.
If you statically assigned a private IP address
to the computer, (not a registered public
address), verify the following:
Check that the gateway IP address on the
computer is your public IP address (see
Current Status on page 1 for instructions
on viewing the IP information.) If it is not,
correct the address or configure the PC to
receive IP information automatically.
Verify with your ISP that the DNS server
specified for the PC is valid. Correct the
address or configure the PC to receive
this information automatically.
My LAN PCs cannot display
web pages on the Internet.
Verify that the DNS server IP address specified
on the PCs is correct for your ISP, as
discussed in the item above. If you specified
that the DNS server be assigned dynamically
from a server, then verify with your ISP that the
address configured on the device is correct,
and then you can use the ping utility, discussed
on page 73, to test connectivity with your ISP’s
DNS server.
Web pages
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Problem
Troubleshooting Suggestion
I forgot/lost my user ID or
password.
If you have not changed the password from the
default, try using “admin” as both the user ID
and password. Otherwise, you can reset the
device to the default configuration by pressing
three times the Reset Default button on the
front panel of the device. Then, type the default
User ID and password shown above.
WARNING:
Resetting the device removes any
custom settings and returns all settings to their
default values.
I cannot access the web pages
from my browser.
Use the ping utility, discussed in the following
section, to check whether the PC can
communicate with the device’s LAN IP address
(by default 192.168.2.1). If it cannot, check the
Ethernet cabling.
Verify that you are using Internet Explorer or
Netscape Navigator v4.0 or later.
Verify that the PC’s IP address is defined as
being on the same subnet as the IP address
assigned to the LAN port on the device
.
My changes to the web pages
are not being retained.
Be sure to use the
Confirm Changes
function
after any changes.
Diagnosing Problem using IP Utilities
Ping
Ping is a command you can use to check whether your PC can recognize other
computers on your network and the Internet. A ping command sends a message to
the computer you specify. If the computer receives the message, it sends messages
in reply. To use it, you must know the IP address of the computer with which you are
trying to communicate.
On Windows-based computers, you can execute a ping command from the Start
menu. Click the Start button, and then click Run. In the Open text box, type a
statement such as the following:
Click OK. You can substitute any private IP address on your LAN or a public IP
address for an Internet site, if known.
If the target computer receives the message, a Command Prompt window is
displayed:
If the target computer cannot be located, you will receive the message Request timed
out.
Using the ping command, you can test whether the path to the device is working
(using the preconfigured default LAN IP address 192.168.1.1) or another address you
assigned.
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You can also test whether access to the Internet is working by typing an external
address, such as that for www.yahoo.com (216.115.108.243). If you do not know the
IP address of a particular Internet location, you can use the nslookup command, as
explained in the following section.
From most other IP-enabled operating systems, you can execute the same command
at a command prompt or through a system administration utility.
Nslookup
You can use the nslookup command to determine the IP address associated with an
Internet site name. You specify the common name, and the nslookup command looks
up the name in on your DNS server (usually located with your ISP). If that name is not
an entry in your ISP’s DNS table, the request is then referred to another higher-level
server, and so on, until the entry is found. The server then returns the associated IP
address.
On Windows-based computers, you can execute the nslookup command from the
Start menu. Click the Start button, and then click Run. In the Open text box, type the
following:
Nslookup
Click OK. A Command Prompt window displays with a bracket prompt (>). At the
prompt, type the name of the Internet address that you are interested in, such as
www.microsoft.com
.
The window will display the associate IP address, if known, as shown below:
There may be several addresses associated with an Internet name. This is common
for web sites that receive heavy traffic; they use multiple, redundant servers to carry
the same information.
To exit from the nslookup utility, type
exit
and press
[Enter]
at the command prompt.

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