Another troubleshooting step that can help resolve disconnections is clearing the Mac address on your Xbox One.
- Press Start at the main Xbox One menu.
- Navigate to Settings.
- Select Network Settings, Advanced Settings, Alternative Mac Address, and finally Clear.
- Restart and shut down the Xbox One. Disconnect the power cord from the back of the console and wait two minutes.
- Once the two minutes have passed, plug the power back in and wait for the power bricks light to go from white to orange.
- When the light switches to orange, reboot the console and try the game again.
If clearing the address doesn't improve your connection stability, we recommend opening a support ticket.