Some more PlayStation Network downtime has been scheduled to take place tomorrow, Thursday 15th December. The PlayStation Network will be offline between 16.00PM until 02.00AM GMT on Friday 16th December. As usual, you wont be able to sign into any PlayStation Network services, including the PlayStation Store and Account Management sections.
Users who are already signed into the PlayStation Network should not be affected, so if you wish to continue playing online, be sure to sign-in before the maintenance window.