49

Appendix A: Troubleshooting

Common Problems and Solutions

Wireless-G Home Router

5.

I am not able to access the Setup page of the Router’s web-based utility.

•

Refer to “Problem #3, 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 #2: I need to set a static IP address.”

•

Refer to “Problem #10: I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up

window.”

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 Forward tab.

2.

Enter any name you want to use for the Application.

3.

Enter the Start and End 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.

Select the protocol(s) 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

Enable

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 and End

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

50

Appendix A: Troubleshooting

Common Problems and Solutions

Wireless-G Home 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 Forward tab.

2.

Enter any name you want to use for the Application.

3.

Enter the Start and End 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.

Select the protocol(s) 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

Enable

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 and End

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

51

Appendix A: Troubleshooting

Common Problems and Solutions

Wireless-G Home 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 Forward 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

Enable

next to DMZ. In the

Client PC 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 Administration => 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.

52

Appendix A: Troubleshooting

Common Problems and Solutions

Wireless-G Home Router

11.To start over, I need to set the Router to factory default.

Hold the

Reset

button for 10 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 http://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 #2, 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 http://192.168.1.1 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.

53

Appendix A: Troubleshooting

Common Problems and Solutions

Wireless-G Home Router

15.I can’t access my e-mail, web 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 at 1500.

For most DSL users, it is strongly recommended to use MTU 1492.

•

If you are having some difficulties, perform the following steps:

1.

To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the

Router.

2.

Enter the password, if asked. (The default 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 keeps flashing.

The Power LED flashes when the device is first powered up. Meantime, the system will boot up itself and

check for proper operation. After finishing the checking procedure, the LED stays solid to show that the

system is working fine. If the LED keeps flashing 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 PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address,

Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.

•

If the PCs are configured correctly, but still not working, check the Router. 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.)

•

If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is

working correctly. You can remove the Router 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

.