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Page 56 / 95 Scroll up to view Page 51 - 55
49
Appendix A: Troubleshooting
Common Problems and Solutions
Wireless-G ADSL Gateway
field provided. Check “Appendix D: Finding the MAC Address and IP Address for Your Ethernet
Adapter” for details on getting an IP address.
6.
Check the Enable option for the port services you want to use. Consider the example below:
Customized Application
External Port
TCP
UDP
IP Address
Enable
Web server
80 to 80
X
192.168.1.100
X
FTP server
21 to 21
X
192.168.1.101
X
SMTP (outgoing)
25 to 25
X
192.168.1.102
X
POP3 (incoming)
110 to 110
X
192.168.1.102
X
When you have completed the configuration, click the
Save Settings
button.
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 Gateway 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 Gateway’s web interface by going to http://192.168.1.1 or the IP address of the Gateway.
Go to the Applications and Gaming => Port Range Forwarding tab.
2.
Enter any name you want to use for the Customized 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 computer 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 D: Finding the MAC Address and IP Address for Your Ethernet
Adapter” for details on getting an IP address.
6.
Check the
Enable
option for the port services you want to use. Consider the example below:
Customized Application
External Port
TCP
UDP
IP Address
Enable
UT
7777 to 27900
X
X
192.168.1.100
X
Halflife
27015 to 27015
X
X
192.168.1.105
X
PC Anywhere
5631 to 5631
X
192.168.1.102
X
VPN IPSEC
500 to 500
X
192.168.1.100
X
When you have completed the configuration, click the
Save Settings
button.
Page 57 / 95
50
Appendix A: Troubleshooting
Common Problems and Solutions
Wireless-G ADSL Gateway
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 computer 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 Gateway will be checked first by the forwarding
settings. If the port number that the data enters from does not have port forwarding, then the Gateway will
send the data to whichever computer or network device you set for DMZ hosting.)
•
Follow these steps to set DMZ hosting:
1.
Access the Gateway’s web-based utility by going to http://192.168.1.1 or the IP address of the
Gateway. Go to the Applications and Gaming => DMZ tab. Click Enabled and enter the IP of the
computer.
2.
Check the Port Forwarding pages and disable or remove the entries you have entered for forwarding.
Keep this information in case you want to use it at a later time.
•
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
Gateway.
•
Reset the Gateway 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 Gateway’s web-based utility by going to http://192.168.1.1 or the IP address of the
Gateway. Enter the default username and password
admin
, and click the
Administrations
=>
Management
tab.
2.
Enter a different password in the Gateway 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 Gateway 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.
Page 58 / 95
51
Appendix A: Troubleshooting
Common Problems and Solutions
Wireless-G ADSL Gateway
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.
11.To start over, I need to set the Gateway to factory default.
Hold the
Reset
button for 10 seconds and then release it. This will return the Internet settings, password,
forwarding, and other settings on the Gateway to the factory default settings. In other words, the Gateway 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 http://www.linksys.com and download the latest firmware.
2.
To upgrade the firmware, follow the steps in the Administration section found in
“Chapter 5:
Configuring the Gateway.”
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 computer; 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 Gateway’s web-based utility through its
Administration tab.
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.
Page 59 / 95
52
Appendix A: Troubleshooting
Common Problems and Solutions
Wireless-G ADSL Gateway
1.
To connect to the Gateway, go to the web browser, and enter http://192.168.1.1 or the IP address of
the Gateway.
2.
Enter the username and password, if asked. (The default username and 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. Click the
Status
tab, and click the
Connect
button.
5.
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.
6.
Click the
Save Settings
button to continue.
•
If the connection is lost again, follow steps 1- 6 to re-establish connection.
15.I can’t access my e-mail, web, or VPN, or I am getting corrupted data from the Internet.
The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set
automatically.
•
If you are having some difficulties, perform the following steps:
1.
To connect to the Gateway, go to the web browser, and enter http://192.168.1.1 or the IP address of
the Gateway.
2.
Enter the username and password, if asked. (The default username and password is admin.)
3.
Look for the MTU option, and select
Manual
. In the Size field, enter 1492.
4.
Click the
Save Settings
button to continue.
•
If your difficulties continue, change the Size to different values. Try this list of values, one value at a time,
in this order, until your problem is solved:
1462
1400
1362
1300
16.The Power LED flashes continuously.
The Power LED lights up when the device is first powered up. In the meantime, the system will boot up itself
and check for proper operation. After finishing the checking procedure, the LED remains steady to show that
the system is working fine. If the LED continues to flash after this time, the device is not working properly. Try
to flash the firmware by assigning a static IP address to the computer, and then upgrade the firmware. Try
using the following settings, IP Address: 192.168.1.50 and Subnet Mask: 255.255.255.0.
17.When I enter a URL or IP address, I get a time-out error or am prompted to retry.
•
Check if other computers work. If they do, ensure that your computer’s IP settings are correct (IP Address,
Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.
•
If the computers are configured correctly, but still not working, check the
Gateway. Ensure that it is
connected and powered on. Connect to it and check its settings. (If you cannot connect to it, check the
LAN and power connections.)
Page 60 / 95
53
Appendix A: Troubleshooting
Frequently Asked Questions
Wireless-G ADSL Gateway
•
If the Gateway is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it
is working correctly. You can remove the Gateway to verify a direct connection.
•
Manually configure the TCP/IP settings with a DNS address provided by your ISP.
•
Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet
Explorer, click
Tools
,
Internet Options
, and then the
Connection
tab. Make sure that Internet Explorer is
set to
Never dial a connection
. For Netscape Navigator, click
Edit
,
Preferences
,
Advanced
, and
Proxy
.
Make sure that Netscape Navigator is set to
Direct connection to the Internet
.
Frequently Asked Questions
What is the maximum number of IP addresses that the Gateway will support?
The Gateway will support up to 253 IP addresses.
Is IPSec Passthrough supported by the Gateway?
Yes, it is a built-in feature that is enabed by default.
Where is the Gateway installed on the network?
In a typical environment, the Gateway is installed between the ADSL wall jack and the LAN.
Does the Gateway support IPX or AppleTalk?
No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications.
IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk,
a communications protocol used on Apple and Macintosh networks, can be used for LAN to LAN connections, but
those protocols cannot connect from the Internet to a LAN.
Does the LAN connection of the Gateway support 100Mbps Ethernet?
The Gateway supports 100Mbps over the auto-sensing Fast Ethernet 10/100 switch on the LAN side of the
Gateway.
What is Network Address Translation and what is it used for?
Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that
is sent out to the Internet. This adds a level of security since the address of a computer connected to the private
LAN is never transmitted on the Internet. Furthermore, NAT allows the Gateway to be used with low cost Internet
accounts when only one TCP/IP address is provided by the ISP. The user may have many private addresses
behind this single address provided by the ISP.
Does the Gateway support any operating system other than Windows 98SE, Windows Millennium,
Windows 2000, or Windows XP?
Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of
any non-Windows operating systems.

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