How To Fix PS4 Error NP-31866-4

Do you own a PlayStation 4? If so, have you ever received the error message NP-31866-4? This error may prevent you from being able to sign in to your account or play games. Fortunately, there are different ways in which you can fix it quickly.

First, let us know why does NP-31866-4 error occurs on PS4?

When you are trying to sign in to your PlayStation 4, error NP-31866-4 may show up. If the error does occur, it means that there might be something wrong with the network settings on your console.

Some users have reported that they cannot log into their PlayStation Network accounts and can’t do anything else with their consoles because of this NP-31866-4 error code coming up every time they try to sign in.

It can be really frustrating to see this error message, especially when you just want to play your favorite game. But don’t worry, there are ways in which you can fix it.

Here are some ways on how to fix the NP-31866-4 error on your PlayStation 4:

How To Fix PS4 Error NP-31866-4

1. Check your internet connection

The first thing you should do is check your internet connection. Make sure that your console is connected to the internet and that all of the cables are plugged in properly. If there is a problem with your internet connection, it will likely prevent you from signing in to your PlayStation 4 as well.

Along with this, you should check if the PlayStation Network is experiencing server issues. If that’s the case, then it’s a good idea to wait a few hours and try signing in again.

2. Check the date and time settings on your PlayStation 4

A common reason why players have been seeing an NP-31866-4 error message when they sign in to their consoles is because of incorrect date and time settings. Make sure that this information is correct so that your account can connect to PlayStation Network servers properly. You can follow these steps to verify or change the date and time:

1) Navigate to Settings > System Software Update > Date and Time Settings.

2) Verify that today’s date is selected in the “Date” section and that the time is set correctly in the “Time” section.

3) Press the Triangle button on your controller to access options, and select ” Save and Exit “.

4) Restart your console.

5) Try signing in again.

Post this you should be able to play games online or sign in with no errors showing up at all.

3. Delete the PlayStation Network cache files  

It’s also possible for an NP-31866-4 error message to show up if there are corrupted cache files within your PlayStation 4 system storage or memory cards. You can clear those files by following these steps:

1) From the home screen of your PlayStation 4, go to Settings.

2) Select ” Application Saved Data Management”.


4) Select “Delete”.

5) After deleting all of the files, go back to Settings one more time and select ” Initialization”.  

Then select ” Initialize PS4 (Reinstall System Software) “, and then ” Full”. This will take a while to complete so you need some patience. When it’s done restart your console and try signing in again.

4. Restore your console to factory settings

If you’ve tried all of the methods mentioned above and you’re still experiencing the NP-31866-4 error, then your last option is to restore your PlayStation 4 to factory settings. This will erase all of your data and settings, but it may be the only way to fix the problem.

To restore your console, follow these steps:

1) From the home screen, go to Settings.

2) Select “Initialization”.

3) Choose “Restore PS4 (Reinstall System Software)”.

4) After the process is completed, your console will restart and you will need to set it up again from scratch.

5) Try signing in once more.

5. Contact PlayStation support

If you’ve tried all of the methods mentioned above and you’re still experiencing the NP-31866-4 error, then your last option is to contact PlayStation support. They will be able to help you troubleshoot the problem and may be able to provide a solution.

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At last, if all the above-mentioned steps do not help to solve the PlayStation 4 Error NP-31866-4, contacting PlayStation support would be the best and last resort. They should be able to help resolve the issue. Best of luck!

We hope that this article was of some help. If you experience any other errors on your PlayStation 4, please feel free to let us know in the comments section below and we’ll try to offer a solution. Thanks for reading!

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