You may have problems connecting to the local network, please try the following:
Step 1: PlayStation Network ("PSN") or the game servers may be temporarily unavailable. Ensure that PSN services and game servers are available.
Step 2: If both services are active, perform a test connection to the Internet, go to [Settings]> [Network]> [Internet Connection Test] to confirm that you can connect to the internet.
Step 3: Update the firmware on your router. Please contact your router manufacturer or your Internet service provider ("ISP") for assistance if needed. Shut down other devices on your network. If you are still experiencing difficulties, please try again later, the server may be experiencing high traffic.