PlayStation Network maintenance has been scheduled for next Monday, October 15, from 1pm BST until 2am BST on Tuesday October 16.
During this period users will be unable to access the PlayStation Store, Account Management and Account Registration services, as well as the sonyentertainment.com website. Online gaming shouldn't be affected, TheSixthAxis reports.
The maintenance is likely being carried out to prepare for the launch of the new PlayStation Store next Wednesday.
Earlier today Sony announced that UK PS3 sales have surpassed five million units.