PlayStation users should be aware that the PlayStation Network is due for scheduled maintenance from Thursday, 26th July 16:00 until Friday, 27th July 0:800 British Standard Time. During this manintenance time, users will be unable to access the following services.
-PlayStation Store on PS3, PSP and PS Vita
-PlayStation Network Account Management
-PlayStation Network Account Registration.
If users wish to play online during this scheduled mainteanance, then you have to sign-in to PSN before the start of the maintenance window.