Removing DNS settings from your Xbox One
From your Xbox One homescreen, click on Settings tab and click on Network.
Click on Advanced settings.
You should be in the Change Settings page. Click on DNS settings.
If you've set our DNS earlier, Manual should already be selected. Change this to Automatic and click Done.
If you are still having problems, please email us at firstname.lastname@example.org , and try to include any errors and a full description of the fault.
We'll get back to you as soon as possible.