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If you do not have an Ethernet port on your computer.
You’ll need to purchase and install an Ethernet adapter (also called a network interface card or NIC). Ethernet adapters can be purchased from a computer or electronics store.
If the PWR indicator on your Wi-Fi modem does not light up after plugging the modem in.
- Check the power supply. Are the connections with your modem and electrical outlet secure?
- Is your modem connected to a live electrical outlet? Try plugging a night light into the outlet to see if it works, or plug the modem into another outlet.
- If you’re using a surge protector, make sure it’s turned on and working.
If the Welcome screen does not appear.
Shut-down/Turn-off your modem and computer. Check and make sure the modem power cable is securely connected. Check to make sure the ethernet cable is securely connected to both the computer and to the modem. Power on the modem and wait approximately 30 seconds. Power on your computer.
If you're unable to connect to the Internet due to a weak or absent signal.
- Make sure the antenna is securely connected to the Wi-Fi modem.
- Make sure your antenna is pointed straight up. To check your signal strength, open your Web browser to the following address: http://192.168.20.1 Then click on the Aim Antenna link on the left-side of the screen.
- Make sure your modem is not on or near other electronic devices such as your computer monitor, cell phones, scanners, radios, a cordless phone (handset or base), halogen or fluorescent lights, or a microwave oven. These devices may interfere with your wireless signal.
- Move your modem to an area where there is better signal strength. Try placing your modem closer to an outside wall or window. While trial and error may not be the most scientific way to find a wireless signal, it is often the easiest way to assure the best possible Wi-Fi connection.
If you can't reach the modem login screen at http.//192.168.20.1.
Make sure your computer is set to use a dynamic or server-assigned IP address by following the instructions that correspond to your operating system (see below). If you need help identifying your Windows operating system, right-click on the My Computer icon and choose Properties.
Windows 95/98/Me:

1. Open your Control Panel and double-click Network.

2. Click on the Configuration tab.

3. In the Network Components list, select the line that begins with TCP/IP and ends with the name of your Ethernet adapter, and click Properties.

4. Click the IP Address tab.

5. Select Obtain an IP address automatically. If you’re using Windows Me, uncheck the Detect connection to network media box. Under the Gateway tab, all the fields should be blank.

6. Click OK.

Windows NT:

1. Open your Control Panel and double-click Network.

2. Click on the Protocols tab. Select TCP/IP Protocol and click Properties.

3. Click the IP Address tab.

4. Select Obtain an IP address from a DHCP server. Under the DNS tab, all the fields should be blank.

5. Click OK.

Windows 2000/XP:

1. Open your Control Panel and double-click Network and Dial-up Connection set- tings.

2. Right-click the Local Area Connection icon, and choose Properties.

3. Select Internet Protocol (TCP/IP) from the list, and click Properties.

4. Select Obtain an IP address automatically and Obtain DNS server automatically.

Mac OS X:

1. Open your Network Preferences.

2. From the Location pull-down menu, choose New Location. In the box, type EarthLink and click OK.

3. From the Show pull-down menu, choose Built-in Ethernet.

4. From the Configure pull-down menu, choose Using DHCP.

5. Click Apply Now.