Dec 25, 2009

Xbox One No Longer Requires Always-On Internet Connection Now, the Xbox One will only require an Internet connection during its initial setup right after purchase. Customers will be able to play offline games without being online, and users will have no Does xbox one require internet connection?? - Microsoft Nov 04, 2014

The Xbox One will detect the wired connection and configure itself appropriately. There’s no manual configuration to perform. Most routers are configured to assign IP addresses automatically to all the devices that are connected to your network and automatically provide Internet access to them.

Do I have to have an Internet connection to install

So you DO need a internet connection to play games on Xbox One

Jan 24, 2020 Xbox One Will Not Require Always-On Internet Connection