Sony has announced two-and-a-half hours of PlayStation Network maintenance will take place next Monday.
The planned downtime will occur between 9am PT / 12pm ET/ 4pm GMT and 11.30am PT / 2.30pm ET / 6.30pm GMT.
During this downtime, PS4 owners will only be able to play online if your console is activated as your Primary system and you've recently signed into you Sony Entertainment Network account and had your details cached. PS3 and Vita users, meanwhile, don't need to worry about the Primary system malarkey, but should still sign in recently beforehand to make sure connectivity is available.