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Page 51 / 83 Scroll up to view Page 46 - 50
45
Appendix A: Troubleshooting
Common Problems and Solutions
Compact Wireless-G Broadband Router
B
Open a command prompt.
For Windows 98SE and Me:
•
Click
Start
and
Run
. In the Open field, type
command
. Press the
Enter
key or click the
OK
button.
For Windows 2000 and XP:
•
Click
Star
t and
Run
. In the Open field, type
cmd
. Press the
Enter
key or click the
OK
button. In the
command prompt, type
and press the
Enter
key.
•
If you get a reply, the computer is communicating with the Router.
•
If you do NOT get a reply, please check the cable, and make sure Obtain an IP address automatically is
selected in the TCP/IP settings for your Ethernet adapter.
C
In the command prompt, type
ping
followed by your Internet or WAN IP address and press the
Enter
key.
The Internet or WAN IP Address can be found on the Status screen of the Router’s web-based utility. For
example, if your Internet or WAN IP address is 1.2.3.4, you would enter
ping 1.2.3.4
and press the
Enter
key.
•
If you get a reply, the computer is connected to the Router.
•
If you do NOT get a reply, try the ping command from a different computer to verify that your original
computer is not the cause of the problem.
D
In the command prompt, type
ping www.yahoo.com
and press the
Enter
key.
•
If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping
command from a different computer to verify that your original computer is not the cause of the problem.
•
If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a
different computer to verify that your original computer is not the cause of the problem.
4.
I am not getting an IP address on the Internet with my Internet connection.
•
Refer to “Problem #2, I want to test my Internet connection” to verify that you have connectivity.
•
If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix E:
Finding the MAC address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address
of your Ethernet adapter onto the Router, see the System section of “Chapter 5: Configuring the
Compact Wireless-G Broadband Router” for details.
•
Make sure you are using the right Internet connection settings. Contact your ISP to see if your Internet
connection type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers).
Please refer to
the Setup section of “Chapter 5: Configuring the Compact Wireless-G Broadband Router” for details on
Internet connection settings.
•
Make sure you have the right cable. Check to see if the Internet column has a solidly lit LED.
•
Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port.
Verify that the Status page of the Router’s web-based utility shows a valid IP address from your ISP.
•
Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router,
cable/DSL modem, and computer. Check the Status tab of the Router’s web-based utility to see if you get
an IP address.
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Page 52 / 83
46
Appendix A: Troubleshooting
Common Problems and Solutions
Compact Wireless-G Broadband Router
5.
I am not able to access the Setup page of the Router’s web-based utility.
•
Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly
connected to the Router.
•
Refer to “Appendix E: Finding the MAC Address and IP address for Your Ethernet Adapter” to verify that
your computer has an IP Address, Subnet Mask, Gateway, and DNS.
•
Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”
•
Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE
users).”
6.
I need to set up a server behind my Router and make it available to the public.
To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.
For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and
port 110 (POP3 incoming) are used for the mail server.
You can get more information by viewing the
documentation provided with the server you installed.
Follow these steps to set up port forwarding through the Router’s web-based utility. We will be setting up
web, ftp, and mail servers.
1.
Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router.
Go to the Applications & Gaming => Port Range Forwarding tab.
2.
Enter any name you want to use for the custom Application.
3.
Enter the External Port range of the service you are using. For example, if you have a web server, you
would enter the range 80 to 80.
4.
Check the protocol you will be using, TCP and/or UDP.
5.
Enter the IP address of the PC or network device that you want the port server to go to. For example,
if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field
provided. Check “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for
details on getting an IP address.
6.
Check the
Enabled
option for the port services you want to use. Consider the example below:
When you have completed the configuration, click the
Save Settings
button.
Application
Start ~ End Port
Protocol
IP Address
Enabled
Web server
80 to 80
Both
192.168.1.100
X
FTP server
21 to 21
TCP
192.168.1.101
X
SMTP (outgoing)
25 to 25
Both
192.168.1.102
X
POP3 (incoming)
110 to 110
Both
192.168.1.102
X
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Page 53 / 83
47
Appendix A: Troubleshooting
Common Problems and Solutions
Compact Wireless-G Broadband Router
7.
I need to set up online game hosting or use other Internet applications.
If you want to play online games or use Internet applications, most will work without doing any port
forwarding or DMZ hosting.
There may be cases when you want to host an online game or Internet
application. This would require you to set up the Router to deliver incoming packets or data to a specific
computer.
This also applies to the Internet applications you are using. The best way to get the information on
what port services to use is to go to the website of the online game or application you want to use. Follow
these steps to set up online game hosting or use a certain Internet application:
1.
Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router. Go to
the Applications & Gaming => Port Range Forwarding tab.
2.
Enter any name you want to use for the custom Application.
3.
Enter the External Port range of the service you are using. For example, if you want to host Unreal
Tournament (UT), you would enter the range 7777 to 27900.
4.
Check the protocol you will be using, TCP and/or UDP.
5.
Enter the IP address of the PC or network device that you want the port server to go to. For example,
if the web server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field
provided. Check “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for
details on getting an IP address.
6.
Check the
Enabled
option for the port services you want to use. Consider the example below:
When you have completed the configuration, click the
Save Settings
button.
8.
I can’t get the Internet game, server, or application to work.
If you are having difficulties getting any Internet game, server, or application to function properly, consider
exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an
application requires too many ports or when you are not sure which port services to use. Make sure you
disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority
over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding
settings. If the port number that the data enters from does not have port forwarding, then the Router will send
the data to whichever PC or network device you set for DMZ hosting.)
Application
Start ~ End Port
Protocol
IP Address
Enabled
UT
7777 to 27900
Both
192.168.1.100
X
Halflife
27015 to 27015
Both
192.168.1.105
X
PC Anywhere
5631 to 5631
UDP
192.168.1.102
X
VPN IPSEC
500 to 500
UDP
192.168.1.100
X
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48
Appendix A: Troubleshooting
Common Problems and Solutions
Compact Wireless-G Broadband Router
Follow these steps to set DMZ hosting:
1.
Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router.
Go to the Applications & Gaming => Port Range Forwarding tab.
2.
Disable or remove the entries you have entered for forwarding.
Keep this information in case you
want to use it at a later time.
3.
Go to the Applications & Gaming => DMZ tab.
4.
Select
Enabled
next to DMZ. In the
Host IP Address
field, enter the IP address of the computer you
want exposed to the Internet.
This will bypass the NAT technology for that computer. Please refer to
“Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting
an IP address.
5.
Once completed with the configuration, click the
Save Settings
button.
9.
I forgot my password, or the password prompt always appears when I am saving settings to the
Router.
Reset the Router to factory default by pressing the Reset button for 10 seconds and then releasing it. If you
are still getting prompted for a password when saving settings, then perform the following steps:
1.
Access the Router’s web-based utility by going to http://192.168.1.1 or the IP address of the Router.
Enter the default password admin, and click the Administrations => Management tab.
2.
Enter a different password in the
Router Password
field, and enter the same password in the second
field to confirm the password.
3.
Click the
Save Settings
button.
10.I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.
If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for
the Internet connection, the computer does not need any proxy settings to gain access.
Please follow these
directions to verify that you do not have any proxy settings and that the browser you use is set to connect
directly to the LAN.
•
For Microsoft Internet Explorer 5.0 or higher:
1.
Click
Start,
Settings
, and
Control Panel
. Double-click Internet Options.
2.
Click the
Connections
tab.
3.
Click the
LAN settings
button and remove anything that is checked.
4.
Click the
OK
button to go back to the previous screen.
5.
Click the option
Never dial a connection
.
This will remove any dial-up pop-ups for PPPoE users.
•
For Netscape 4.7 or higher:
1.
Start
Netscape Navigator
, and click
Edit
,
Preferences
,
Advanced
, and
Proxies
.
2.
Make sure you have Direct connection to the Internet selected on this screen.
3.
Close all the windows to finish.
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49
Appendix A: Troubleshooting
Common Problems and Solutions
Compact Wireless-G Broadband Router
11.To start over, I need to set the Router to factory default.
Hold the
Reset
button for 8 seconds and then release it. This will return the password, forwarding, and other
settings on the Router to the factory default settings. In other words, the Router will revert to its original
factory configuration.
12.I need to upgrade the firmware.
In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download
the latest firmware at
www.linksys.com
.
Follow these steps:
1.
Go to the Linksys website at
www.linksys.com
and download the latest firmware.
2.
To upgrade the firmware, follow the steps in “Appendix C: Upgrading Firmware.”
13.The firmware upgrade failed, and/or the Power LED is flashing.
The upgrade could have failed for a number of reasons.
Follow these steps to upgrade the firmware and/or
make the Power LED stop flashing:
•
If the firmware upgrade failed, use the TFTP program (it was downloaded along with the firmware). Open
the pdf that was downloaded along with the firmware and TFTP program, and follow the pdf’s
instructions.
•
Set a static IP address on the PC; refer to “Problem #1, I need to set a static IP address.” Use the following
IP address settings for the computer you are using:
IP Address: 192.168.1.50
Subnet Mask: 255.255.255.0
Gateway: 192.168.1.1
•
Perform the upgrade using the TFTP program or the Administration tab of the Router’s web-based utility.
14.My DSL service’s PPPoE is always disconnecting.
PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a
period of inactivity, just like a normal phone dial-up connection to the Internet.
•
There is a setup option to “keep alive” the connection.
This may not always work, so you may need to re-
establish connection periodically.
1.
To connect to the Router, go to the web browser, and enter
or the IP address of
the Router.
2.
Enter the password, if asked. (The default password is admin.)
3.
On the Setup screen, select the option
Keep Alive
, and set the Redial Period option at 20 (seconds).
4.
Click the
Save Settings
button.
5.
Click the
Status
tab, and click the
Connect
button.
6.
You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you
see the login status display as Connected.
•
Click the
Save Settings
button to continue.
•
If the connection is lost again, follow steps 1- 6 to re-establish connection.
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