1.Go To Settings
2.Go To System
3.Go Down To Network Settings
4. Choose Your Connection (Wired Or Wireless) and Press A On It
5. Go To Configure Network
6.Go All The Way To The Bottom On The Basic Settings To DNS Settings
7.Press A On DNS Settings and Choose Manual
8.Set Primary As 8.8.8.8
9.Set Secondary DNS Server as 8.8.4.4
10.Save and Turn The Xbox Off and Then Back On