Lines/interference on screen with xbox one

They were if they didnt glitch, which for a few unfortunate players (me included) kind of ruined the whole experience. I encountered horizontal lines of interference across the screen most of the way through.

Wireless connections are susceptible to interference, two xboxes placed next to each other interfere with each other.

You could use a pair of power lines to switch to a wired connection without having long ethernet cables running around the house, there are also power lines with built-in switches so that you can connect more than one device, such as your two xboxes and
a smart TV.

I'd like to add that at one point my xbox was 15 ft from my router, line if sight was good, no interference in between and still it would dc.

I know it is frustrating that this happens. I had a issues similar to yours a few times. So I found these steps to troubleshoot. Follow these steps to solve the problem:

• Power Down your console entirely
  
  This is a FULL shutdown
  
  You will want to UNPLUG your console from electrical power for at least 5 minutes
  
  This clears out your Xbox's RAM entirely and will help ensure any data that can cause these issues to clear out.
  
• Disconnect Third party headsets Third-party wireless headsets can cause active interference because they broadcast on the same frequency as wireless routers. To identify if the headset is causing the issue, disconnect the power from the base
  station of the wireless headset, then check to see if this clears up the connection problem you were experiencing.
  
• Check for other wireless interference Active interference
  
  Active interference is caused when other electronic devices are broadcasting either a wireless signal or some other form of electromagnetic interference. Common causes of active interference are microwaves, ovens, air conditioners, CRT televisions, wireless
  headsets, baby monitors, other wireless networks, cordless phone systems, and wireless speakers.

Note As a best practice to minimize potential wireless interference, make sure all the cables on the back of your console are gathered away from and are not touching the console.

• Passive interference
  
  Passive interference occurs when a wireless signal passes through objects. This causes the wireless signal to be weakened and refracted. Materials that cause passive interference include concrete, glass, lead and copper piping, insulation, mirrors, gun safes,
  filing cabinets, tile, and plaster. The wireless signal also degrades over distance. Interference can also occur when the console is too close to the wireless router. The ideal distance from the wireless router for the Xbox One console is between 5 and 50
  feet.
• Line of sight
  
  When dealing with active or passive interference, a critical component to consider is line of sight. Draw an imaginary straight line from your router to your Xbox One console, and try to eliminate as many points of interference as you can along
  that line. You can do this by turning off or moving any devices along that line that could cause active interference. Or, you can move the console or router to minimize passive interference. Moving the devices outside of entertainment cabinets or desks can
  often help improve wireless signals.

I hope this helps!

Regards.

I worked out how to reproduce the lines:

Force power off the Xbox One then power on, the lines intermittently appear during full screen TV playback. To get rid of the problem put the Xbox One into standby then "Xbox On" and the lines have now gone.