Xbox Live users should now be able to sign into Xbox Live on all platforms.
Original story
If you are having issues logging into Xbox Live, it’s not just you.
Microsoft has said it is aware of users on multiple platforms being unable to log into Xbox Live.
Rest assured, a team is looking into the issue.
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— Xbox Support (@XboxSupport) November 10, 2020
Looking over the Xbox Live Status page, it appears core services and Destiny 2 are the main issues.
Once things are straightened out, we will be sure to update this post.
Xbox Series X/S both launched today.