I am no longer able to access the Internet.

When your computer connects to the Internet, a number of devices must work together:

• Your computer must connect to your router.
• Your router must connect to your modem.
• Your modem must connect to your Internet Service Provider (ISP)

Your Internet access might be failing in any of these devices or in any of the connections between them. To help you find the source of the problem and correct it, the instructions in this section will guide you through three major troubleshooting steps:

• Checking the devices' LEDs
• Checking the router and its connections
• Checking the modem and its Internet connection

Check the LEDs

1. Is the router's Power LED lighted?
• If yes, continue with the next LED checking step.
• If no, be sure that your router is plugged in to a working power source.
2. Is the router's System LED blinking at the steady rate of once per second?
• If yes, continue with the next LED checking step.
• If no, reboot the router by unplugging its power supply and plugging it in again. If the System LED still does not blink steadily at the rate of once per second, the router may have failed. Contact USRobotics Customer Support.
3. Is one of the router's WAN LEDs lighted?
• If yes, continue with the next LED checking step.
• If no, the router does not have access to the Internet, so neither will your computer. To find out why your router cannot access the Internet, check your router to modem connection.
4. Is the router's LAN LED that corresponds to the LAN port connected to your computer lighted?
• If yes, continue with the next LED checking step.
• If no, the router does not have access to your computer and cannot pass data between the computer and the Internet. Check your computer to router connection.
5. Do your modem's power and status LEDs indicate a connection? (Refer to your modem's documentation for information on its indicators.)
• If yes, check the router and its connections.
• If no, the problem probably resides in your modem or its connection to your ISP. Contact your ISP for troubleshooting assistance.

Check the Router and Its Connections

This section will guide you through the steps of determining whether your problem resides in one of the following segments of the connection between your computer and the Internet:

• Computer to Router Connection
• Router
• Router to Modem Connection

Computer to Router

Ping the router as follows:

1. Click Windows Start > Run.
2. In the Run dialog box
• Windows XP, 2000, and NT users: Type cmd and click OK.
• Windows Me, 98, and 95 users: Type command and click OK.
3. Type Ping 192.168.123.254 and press Enter.

Did you receive a reply to the ping?

• If yes, your computer is reaching the router. Continue by checking your router.
• If no,
  1. Ensure that the Ethernet cable connecting your router to your computer is connected to a LAN port on the router.
  2. Ensure that both ends of the Ethernet cable connecting the router to your computer are connected securely.
  3. Try to access the Internet. If you still do not have Internet access, continue by checking your router.

Router

To determine whether your router is responding,

1. Launch your Web browser.
2. In the location or address line, type the address of the router's Web User Interface and press Enter. The default address is http://192.168.123.254

Did the Web User Interface appear?

• If yes, the router is responding. Continue by checking your router to modem connection.
• If no, the router is not responding. You may need to release and renew your connection, reboot your router, or reset your router.

Release and renew your computer's network connection:

1. Issue the release and renew commands.

Windows XP, 2000, or NT:

1. Click Windows Start > Run.
2. Type cmd and press Enter.
3. Type ipconfig /release and press Enter.
4. Type ipconfig /renew and press Enter.
5. Type exit and press Enter.

Windows Me, 98, or 95:

1. Click Windows Start > Run.
2. Type winipcfg and press Enter.
3. Click Release.
4. Click Renew.
5. Close the application.
2. Determine whether the release and renewal were effective by accessing the router's Web User Interface (the default address is http://192.168.123.254).
• If the router's Web User Interface appears, try to access the Internet. If you still do not have Internet access, continue by checking your router to modem connection.
• If the router's Web User Interface does not appear, continue by rebooting your router.

Reboot your router:

1. Unplug your router's power supply and then plug it in again.
2. Determine whether the reboot was effective by accessing the router's Web User Interface (the default address is http://192.168.123.254).
• If the router's Web User Interface appears, try to access the Internet. If you still do not have Internet access, continue by checking the router to modem connection.
• If the router's Web User Interface does not appear, continue by resetting your router.

Reset your router:

Note:This procedure resets your router's configuration settings to their factory default settings. After performing this procedure, you must either enter your configuration settings manually or, if you have backed up your settings, restore your backup.

1. Perform the reset procedure:
1. Unplug the router's power supply.
2. Press in and hold the RESET button.
3. While holding the RESET button, plug in the power supply.
4. When the router has power again, continue to hold the RESET button until the SYSTEM LED begins flashing. Then release the RESET button.
2. Determine whether the reset was effective by accessing the router through your Web browser at http://192.168.123.254.
• If the router's Web User Interface appears, try to access the Internet. If you still do not have Internet access, continue by checking your router to modem connection.
• If the router's Web User Interface does not appear, the router may have failed. Contact USRobotics Customer Support.

Router to Modem

Ensure that both ends of the cable connecting your router to your modem are connected securely. Ensure that the modem has power and is turned on. If you still do not have access to the Internet, the problem probably is in the modem or its connection to your Internet Service Provider. Check the Modem and its Internet connection.

Check the Modem and Its Internet Connection

1. Ensure that your modem is connected to the wall jack and that both ends of the cable are connected securely.
2. Reboot the modem. Your modem may have a power switch or reset button, or you may need to unplug the modem's power adapter and plug it in again. For modem rebooting instructions, consult your modem's documentation.

If your WAN type is dynamic,

1. Open the router's Web User Interface Status page, click Release, then click Renew.
2. After the router has finished renewing its WAN IP address, the Status page should identify the WAN IP address.
• If the router has a WAN IP address, try to access the Internet. If you still do not have access to the Internet, the problem is probably with your modem or your ISP. Contact your ISP for further troubleshooting assistance.
• If the router does not have a WAN IP address, the problem is probably with your modem or your ISP. Contact your ISP for further troubleshooting assistance.