Removing DNS settings from your Xbox 360
On your Xbox 360 home screen, scroll right all the way to the Settings tab and click on System.
Click on Network Settings.
Select your network connection, Wired or Wireless. In this screenshot, we selected Wireless.
You should be in the Network Settings page. Click on Configure Network.
In the Basic Settings tab, select DNS Settings.
If you've set our DNS earlier, Manual should already be selected. Change this to Automatic and click Done.
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