Hi,
First you need to do wireless setting on router,steps to do wireless setting on router
1. Open a web browser (Internet Explorer, Mozilla Firefox or Safari).
2. Access the router, usually by typing 'http://192.168.0.1' or 'http://www.routerlogin.com' in the address bar.
3. Login to the router with the Username as "admin" and Password as "password" (please note that the Username and Password are case sensitive).
4. Click on Wireless Settings'(under Setup) from the left menu.
5. now click on ssid which be wireless-netgear..ch:11..security option select wpa/wsk ,under passphress type 9080706050
click on apply
now you need to do setting with Xbox360
link for doing setting on xbox
http://www.chasms.com/xbox/menu.htmafter click on above link please click on system/network setting
then follow instruction
Hope it can resolve issue
Thanks for using Fixya