The best solution is :
1. Buy a wireless router about $40.
2. Connect your wireless router WAN port to the Ethernet port on your modem and follow the instruction from your router to configure your router. It should be very easy.
3. Connect your computer to the router's LAN port.
4. For Xbox, you can either connect to another LAN port on your router or you get buy a wireless adapter for your XBOX so you can play it any where..

I hope this helps..

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XLC Support Team
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