It’s been a while, but Xbox Live appears to be down worldwide at the moment.
Xbox Support tweeted out that their teams were investigating issues with Xbox Live including launching games. They’ve also tweeted a link out that points to an Xbox Status page that ironically also appears to have gone down. It says:
Uh oh… that shouldn’t have happened.
It appears you’ve found a glitch in the system. Please try again later.
Our teams are investigating issues with Xbox Live, including launching games. Details & SMS updates at https://t.co/PzAdjUFMJj