Logins may fail.
Xbox Support is reporting that Xbox Live may be down for some users and that logins to the Xbox Live service and Xbox.com May be failing for some users. This is an ongoing issue.

See below for updates from Xbox Support, we’ll keep this post updated with any developments. You can also check the Xbox Live Service Status here.
10/4/2012 4:24:14 PM PDT:
We are currently still in the process of fixing the issue with signing in to Xbox.com and on the Xbox 360 Console. Thank you for your patience as we get things up and running at full speed. Make sure to check back in 30 minutes for an update on our progress.
10/4/2012 5:31:30 PM PDT:
We are still hard at work fixing the issue with signing in to Xbox.com and on the Xbox 360 Console. Thank you for your patience while we are working to get the service back up and running. Make sure to check back in 30 minutes for another update.
10/4/2012 6:03:09 PM PDT:
We are still receiving reports of issues with signing in to Xbox.com and on the Xbox 360 Console. We in the Xbox Operations Center are still working to fix this problem. We will keep you updated to fix the issue as soon as we can! Check back in 30 minutes for another update.









