Says "Your account is not authorised"

I received both emails and even played a bit a couple hours ago. Just logged in now and says my account isn’t authorised. I turned my xbox off and on again and its still saying it. What do I do?

Same for me just got that maybe they working on something.

Restart the app a few times, it worked for me and alot of other people. Most likely some server thing

same things happening. restarted and updated my pc, still a no go for me.

Getting the same issue on Xbox. I really hope its just slow servers stressing out over how many people are trying to get in. I just want to play Halo man lol.

I got it twice, so I uninstalled it and then reinstalled it. Hopefully, that just solved my issue.