Unable to access PlayStation Network or connect to an online game. This may be due to maintenance on PlayStation Network or temporary congestion with your Internet
Solution
Visit eu.playstation.com to find out if PlayStation Network is currently undergoing maintenance. If PlayStation Network is not available, please attempt to connect at a later time.
Try signing in at a later time as there could be temporary congestion with your Internet service.
If the problem persists, there may be an issue with your Sony Entertainment Network account.