PlayStation Network and some other gaming services were attacked over the holidays with artificially high levels of traffic designed to disrupt connectivity and online gameplay. This may have prevented your access to the network and its services over the last few days.
According to the latest report coming from Playstation, they have stated that the PlayStation Network is back online. However, https://downdetector.co.za/status/playstation-network clearly shows that there are a lot of users in South Africa still encountering login issues into the server.
Fingers crossed and hoping PSN starts to function properly Today!
