Xbox LIVE is having trouble. A few days after their 24-hour downtime to prepare for the fall update, LIVE has been plagued with issues and off-again, on-again connections.
According to LIVE's support site, "Users will not be able to connect or log into Xbox LIVE. We are aware of the problem and working to resolve the issue. We apologize for any inconvenience this may cause."
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According to LIVE's support site, "Users will not be able to connect or log into Xbox LIVE. We are aware of the problem and working to resolve the issue. We apologize for any inconvenience this may cause."
source