Chez Xbox-portal machin, qu'ils apprennent a lire anglais avant de balancer n'importe quoi...
Pour Xbox live, ils recommandent une connection "broadband" (haut débit) adsl ou câble, point.
Et evidemment il faut relier son modem adsl ou cable a sa xbox...
"You gotta have high speed, or broadband, Internet service. That's number one. If you don't have it, get it. (You don't want to be the last on the block with dial-up ? that's just embarrassing.) You're also going to have to connect your cable or DSL modem to your Xbox. So you'll need an Ethernet cable for sure, and maybe some other hardware depending on how fancy you want to get with your home networking."