Check the connection status of the PlayStation 4 in [Settings] > [Network] > [Test Internet Connection]. Try the following. Other devices on your network might be using a large amount of bandwidth.
PS4 Error Code NP-34954-5, PlayStation 4 Error Code NP-34954-5, PS4 NP-34954-5 – There’s a number of PS4 errors that are still cropping up years after the console ...
Besides being locked out of some digital games post activating them, some users have also reported that their PS4 stops connecting to the internet at all, which can be problematic. Fortunately, some ...