How to fix NW-31205-1

Network connection is unstable or too weak to reach the PlayStation™Network server.

  1. Check the connection status of the PlayStation®4 console in Settings > Network > Test Internet Connection.
  2. Try the following:
    • Other devices on your network might be using a large amount of bandwidth. Wait until they are finished.
    • Check that your router and modem supports the PS4® console. Contact your Internet service provider for details.
    • Reset your local network connection by powering off your modem or router and waiting five minutes before turning it back on.
    • Update your router's firmware. Please contact your router manufacturer or Internet Service Provider (ISP) for assistance if required.
    • If you are using a Wi-Fi connection, place the PS4 console system and the router closer together, make sure there are no obstructions between them.
  3. The following port numbers are used to connect with the PSN™ servers using the Internet. Make sure they are not blocked by the router.
    • TCP: 80, 443, 3478, 3479, 3480
    • UDP: 3478, 3479
  4. If you have been using a specific DNS server, go to Settings > Network > Set Up Internet Connection > Custom and change the DNS settings.
  5. If you're still experiencing difficulties, please try again later as the server may be experiencing high traffic.

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