If you have problems connecting to the Xbox Live network, and everything else looks good, you can check the Microsoft website dedicated to the Live network status.
http://support.xbox.com/en-gb/Pages/xbox-live/xbox-live-status.aspx
If you have problems connecting to the Xbox Live network, and everything else looks good, you can check the Microsoft website dedicated to the Live network status.
http://support.xbox.com/en-gb/Pages/xbox-live/xbox-live-status.aspx