the following instructions assume you are running windows xp with the default interface. if you are using the classic interface (where the icons and menus look like previous windows versions), please follow the instructions for windows 2000.
1. click start and control panel.
2. click the network and internet connections icon and then the network connections icon.
3. right-click the local area connection that is associated with the ethernet adapter you are using, and select the properties option.
4. in the this connection uses the following items box, highlight internet protocol (tcp/ip), and click the properties button. make sure that obtain an ip address automatically and obtain dns server address automatically are selected.
b. open a command prompt.
1 for windows 98 and millennium, click start and run. in the open field, type command. press the enter key or click the ok button.
2 for windows 2000 and xp, click start and run. in the open field, type cmd. press the enter key or click the ok button.
c. in the command prompt, type ping 192.168.1.1 and press the enter key.
1 if you get a reply, the computer is communicating with the router.
2 if you do not get a reply, check the cable, and make sure obtain an ip address automatically is selected in the tcp/ip settings for your ethernet adapter.
d. in the command prompt, type ping followed by your internet ip address and press the enter key. the internet ip address can be found in the web interface of the router. for example, if your internet ip address is 1.2.3.4, you would enter ping 1.2.3.4 and press the enter key.
1 if you get a reply, the computer is connected to the router.
2 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.
e. in the command prompt, type ping www.linksys.com and press the enter key.
1 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.
2 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.
6. i am not getting an ip address on the internet with my internet connection.
a. refer to “problem”#2, i want to test my internet connection?to verify that you have connectivity.
b. if you need to register the mac address of your ethernet adapter with your isp, please see “appendix”c:
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 mac address clone section of hapter 6: setting up and configuring the router?for details.
c. make sure you are using the right internet 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" 6: setting up and configuring the router?for details on internet connection type settings.
d. make sure you use the right cable. check to see if the internet led is solidly lit.
e. 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.
f. 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.
7. i am not able to access the router’s web-based utility setup page.
a. refer to “problem #2, i want to test my internet connection” to verify that your computer is properly connected to the router.
b. refer to “appendix c: 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.
c. set a static ip address on your system; refer to “problem #1: i need to set a static ip address.” d. refer to “problem #10: i need to remove the proxy settings or the dial-up pop-up window (for pppoe users).”
8. i am using vpn client software on my computer, and i can’t get my virtual private network (vpn) tunnel to pass through the router.
access the router’s web interface by going to http://192.168.1.1 or the ip address of the router, and go to the vpn =] vpn pass through tab. make sure you have ipsec, pptp, and/or l2tp passthrough enabled.
vpns that use ipsec with esp (encapsulation security payload known as protocol 50) authentication will work fine. at least one ipsec session will work through the router; however, simultaneous ipsec sessions may be possible, depending on the specifics of your vpns.
vpns that use ipsec and ah (authentication header known as protocol 51) are incompatible with the router.
ah has limitations due to occasional incompatibility with the nat standard. change the ip address for the router to another subnet to avoid a conflict between the vpn ip address and your local ip address. for example, if your vpn server assigns an ip address 192.168.1.x (x is a number from 1 to 254) and your local lan ip address is 192.168.1.x (x is the same number used in the vpn ip address), the router will have difficulties routing information to the right location. if you change the router’s ip address to 192.168.2.1, that should solve the problem. change the router’s ip address through the setup tab of the webbased
utility. if you assigned a static ip address to any computer or network device on the network, you need to change its ip address accordingly to 192.168.2.y (y being any number from 2 to 254). note that each ip address must be unique within the network.
your vpn may require port 500/udp packets to be passed to the computer that is connecting to the ipsec server. refer to “problem #7, i need to set up online game hosting or use other internet applications” for details.
check the linksys website at www.linksys.com for more information.
9. i need to set up a server behind my router.
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.
a. 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 setup =] forwarding tab.
b. select the service from the pull-down menu. if the service you need is not listed in the menu, click the service management button to add the new service name, and enter the protocol and port range. click the add to list button. then click the save setting button. click the exit button.
c. enter the ip address of the server that you want the internet users to access. 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 c: finding the mac address and ip address for your ethernet adapter” for details on getting an ip address. then check the enable checkbox for the entry. consider the examples below:
d. click the add to list button, and configure as many entries as you like.
when you have completed the configuration, click the save settings button.
10. 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:
a. 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 setup =] forwarding tab.
b. select the service from the pull-down menu. if the service you need is not listed in the menu, click the service management button to add the new service name, and enter the protocol and port range. for example, if you have a web server, you would enter the range 80 to 80. click the add to list button. then click the save setting button. click the exit button.
c. enter the ip address of the server that you want the internet users to access. 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 c: finding the mac address and ip address for your ethernet adapter” for details on getting an ip address. then check the enable checkbox for the entry. consider the examples below:
d. click the add to list button, and configure as many entries as you like.
when you have completed the configuration, click the save settings button.
11. 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.) follow these steps to set dmz hosting:
a. 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 setup =] forwarding tab.
b. disable or remove the entries you have entered for forwarding. to delete an entry, select it and then click the delete selected application button. keep this information in case you want to use it at a later time.
c. click the dmz host tab.
d. enter the ethernet adapter’s ip address of the computer you want exposed to the internet. this will bypass the nat security for that computer. please refer to “appendix c: finding the mac address and ip address for your ethernet adapter” for details on getting an ip address.
once completed with the configuration, click the save settings button.
12. i forgot my password, or the password prompt always appears when saving settings to the router.
reset the router to factory defaults by pressing the reset button for ten seconds and then releasing it. if you are still getting prompted for a password when saving settings, then perform the following steps:
a. access the router’s web interface by going to http://192.168.1.1 or the ip address of the router. enter admin (the default) in the user name and password fields, and click the setup =] password tab.
b. enter the old password in the old password field.
c. enter a different password in the new password field, and enter the new password in the confirm new password field to confirm the password.
d. click the save settings button.
13. 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:
a. click start, settings, and control panel. double-click internet options.
b. click the connections tab.
c. click the lan settings button and remove anything that is checked.
d. click the ok button to go back to the previous screen.
e. click the option never dial a connection. this will remove any dial-up pop-ups for pppoe users.
for netscape 4.7 or higher:
a. start netscape navigator, and click edit, preferences, advanced, and proxies.
b. make sure you have direct connection to the internet selected on this screen.
c. close all the windows to finish.
14. to start over, i need to set the router to factory default.
hold the reset button for up to 30 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.
15. 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:
a. go to the linksys website at http://www.linksys.com and download the latest firmware, or use the web-based utility to be automatically redirected to the download webpage. go to system management - firmware upgrade, and click the firmware download from linksys web site button. select the router from the pull-down menu and choose the firmware from the options.
b. extract the firmware file on your computer.
c. to upgrade the firmware, follow the steps in the upgrade section found in “chapter 6: setting up and configuring the router” or “appendix b: upgrading firmware.”
16. the firmware upgrade failed.
the upgrade could have failed for a number of reasons. follow these steps to upgrade the firmware:
a. 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
b. perform the upgrade using the router’s web-based utility through its system management =] firmware upgrade tab.
if the firmware upgrade failed, the router will still work using its current firmware.
if you want to use a backup firmware version, go to system management =] restart. select backup
firmware version. click the restart router button to restart the router.
17.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.
a. to connect to the router, go to the web browser, and enter http://192.168.1.1 or the ip address of the router.
b. enter the user name and password, if asked. (the default user name and password are admin.)
c. on the setup - network tab, select keep alive, and set the redial period option at 20 (seconds).
d. click the save settings button.
e. click the status tab, and click the connect button.
f. 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.
if the connection is lost again, follow steps e and f to re-establish connection.
18. i can't access my email, 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 at 1500.
for most dsl users, it is strongly recommended to use mtu 1492. if you are having some difficulties, perform the following steps:
a. to connect to the router, go to the web browser, and enter http://192.168.1.1 or the ip address of the router.
b. enter the user name and password, if asked. (the default user name and password are admin.)
c. go to firewall =] general tab.
d. look for the mtu option, and select enable. in the size field, enter 1492.
e. 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
19. i need to use port triggering.
port triggering looks at the outgoing port services used and will trigger the router to open a specific port, depending on which port an internet application uses. follow these steps:
a. to connect to the router, go to the web browser, and enter http://192.168.1.1 or the ip address of the router.
b. enter the user name and password, if asked. (the default user name and password are admin.)
c. click the setup =] forwarding tab.
d. enter any name you want to use for the application name.
e. enter the start and end ports of the triggered port range. check with your internet application provider for more information on which outgoing port services it is using.
f. enter the start and end ports of the forwarded port range. check with your internet application provider for more information on which incoming port services are required by the internet application.
once completed with the configuration, click the save settings button.
20.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.
1 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.)
2 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.
3 manually configure the tcp/ip with a dns address provided by your isp.
4 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.