I have a Netgear DG834GT Router. The setting was very problematic. I had forgotten to add the adapter to the wireless stations access list. This was very problematic because the router recognized the MAC address automatically and indicated. Then it worked auchmit the Connect immediately. Since the field strength of the adapter into the XBOX 360 angzeigt, you may need to change the location of the router to get optimal performance. With me was it easy, because the router is just two rooms located on one floor. Here are some settings of the router:
Network Network Name (SSID) => Selectable Region => Europe Channel => 2 Mode => G & B Enable wireless access point = set> Rakes Broadcast Network Name permit (SSID) => Rakes set WPA-PSK => Enable Security Encryption (WPA-PSK) Password => individually
that's it, you are with the Wireless LAN Network Adapter!