check ur wirelss router package it comes with instructions on how to use it. Also since u havent provide any details abt ur router and system this is a general setup try next time to read our instruction b4 asking help
» Connect Your Wireless Router and Broadband Modem
To successfully complete the steps below:
- Ensure that you can access the Internet using a "wired" connection to your broadband modem before attempting to establish a wireless Internet connection.
- To complete the installation process, use the order of restarting your wireless equipment as described below, or the connection could fail.
- Your wireless router might have been shipped with an installation CD. Such CDs usually contain installation and troubleshooting information. Load the required software according to the manufacturer's instructions.
- If your Internet Service Provider (ISP) requires a user name and password for Internet access, such as DSL providers do, this information will need to be placed within the wireless router's configuration pages.
1 Disconnect the power from the broadband cable modem or the Digital Subscriber Line (DSL) modem.
Leave the broadband modem disconnected for at least 5 minutes
2 Power off all of your computers.
3 Disconnect the power from the wireless router.
4 Connect one end of a network cable to the broadband modem, and then connect the other end of the network cable to the Internet or WAN port on the wireless router (
Figure 1).

Figure 1: Wireless Network
Numbers reference image above:
Internet
Broadband Modem
Wireless Router
Wireless-Enabled Desktop
Wireless-Enabled Notebook
5 Verify that no other cables, such as network cables, USB cables, or serial cables, are connected to these devices.
6 Connect the power to the broadband modem. Wait for at least 2 minutes for the broadband modem to initialize.
7 Connect the power to the wireless router. Wait for at least 2 minutes for the wireless router to initialize.
8 Turn on the computer and try connecting to the wireless router.
- If you wireless router shipped with a setup CD, run the CD in your computer now.