PS4 error CE-33991-5: How to fix

Many PS4 system users are complaining about error CE-33991-5, which means there is no internet connection. Usually, the error CE-33991-5  is caused by the users themselves, but sometimes the solution lies in the problems of the game servers and the PSN service. Most likely, your local network connection is not configured correctly, or you simply did not pay for the Internet (and this happens). To resolve the CE-33991-5 error, follow the instructions below.

Step 1:  Check the performance of the game server and, of course, make sure of the positive.

Step 2:  After making sure that the cause of error CE-33991-5 is not related to the health of the servers, check your Internet connection. To do this, go to  [Settings], go to  [Network]  and click on  [Check Internet Connection] to check your Internet connection.

Step 3:  An important factor that can affect the appearance of the CE-33991-5 error is the settings of your router. Try updating the firmware or contact your ISP, which may be blocking access to certain resources. Try not to use other devices connected to the same network. Perhaps the server is simply overloaded, so try to log in a little later.

If none of the above methods helped resolve the CE-33991-5 error, try changing your router’s MTU to 1473. For some PS4 users, this has helped.