Modern warfare connection failed – как исправить?

Online services working with all other games not Modern warfare… Hello, the COD: Modern Warfare server might be down and under maintenance. A lot of players had experienced this kind of issue.

Источник: https://answers.microsoft.com/ru-ru/xbox/forum/all/modern-warfare-connection-failed/7f695083-472e-4c77-b9a0-ce3b1bf6388f