Error NP-31866-4 on PS4? Here’s The Fix!

Do you see an NP-31866-4 error code on your PS4 when accessing your cloud data?

One of the best features of the Playstation is PS Cloud. It is a service offered through the Playstation Network, which allows you to save your in-game progress online instead of your console’s local storage. 

This can be a life-saving feature if your Playstation’s drive fails unexpectedly or when you switch from one console to another. 

However, you could experience a few issues when accessing your online data on the PS4, just like the NP-31866-4 error code. 

Usually, the NP-31866-4 error code on the PS4 shows up when you upload your game data to the PS Cloud or when downloading it to your console. This can be frustrating, especially if you’ve come a long way in your game progress. 

Thankfully, we’re here to help! 😀

In this guide, we will show you all the possible solutions for fixing the NP-31866-4 error code on the PS4. 

Let’s jump right in!

1. Reset Your PSN Password. 

As weird as it sounds, we find out that changing your PSN account password actually helps solve the NP-31866-4 error on the PS4. For this, you’ll have to access your account using a web browser on a computer or mobile device. 

Check out the steps below to guide you on the process: 

  1. First, go to PSN’s official website using any browser you prefer. 
  2. After that, click on ‘Trouble Signing In’.
PSN Sign In Page
  1. Now, choose the Reset Your Password option and provide your PSN account’s email address. 
Reset PSN Password
  1. Lastly, visit your email and follow the instructions sent by Playstation to reset your PSN password. 

After resetting your PSN account, go back to your Playstation 4 and check if the NP-31866-4 error code would still occur. 

2. Check Playstation Network Servers. 

Another reason for the NP-31866-4 error code is offline or faulty servers. Like other online platforms, PSN’s team conducts system maintenance to ensure that its services are working. 

You can visit PSN’s official site to check the current status of their servers. 

PSN Status

If there’s ongoing maintenance or the PSN’s servers are currently down, the best thing that you can do is wait for their team to address the problem. On the other hand, you can continue with the other methods below if there’s nothing wrong with PSN’s servers. 

3. Check and Reset Your Internet. 

Since PSN is an online service, the error code NP-31866-4 may also indicate that your network connection is running slow. To confirm this, perform a test on your internet connection using to measure its current upload and download speed. 

Speed Test

If the test indicates that your network is the problem, reboot your network router to refresh the link with your internet service provider. 

You can do this by unplugging the power cable from the outlet. After 5 to 10 seconds, reconnect the power cable to restart your router. 

Restart Router

After resetting your router, run another test to check if the problem is solved. If your connection continues to run slow, contact your internet service provider and ask them to address the issue. 

4. Restart Your PS4. 

Before making any major changes to your console, we suggest restarting it to see if it isn’t just a temporary error. There are instances when your PS4 may not load all its system files correctly the first time, which causes some features not to work. 

Follow the guide below to restart your PS4: 

  1. On your controller, press and hold the PS button until the Quick Menu appears on your screen.
  2. After that, access the Power tab.
  3. Finally, select Restart PS4 and follow the on-screen prompts. 
NP-31866-4 error code on PS4

Wait for your console to restart and check if the NP-31866-4 error code on the PS4 would still occur. 

5. Update Your PS4. 

Your Playstation 4 might need a system update to fix an underlying issue that causes the NP-31866-4 error code. This will also ensure that your console is compatible with all the latest applications and games. 

See the step-by-step guide below to update your PS4: 

  1. Using your controller, navigate to the Settings and open the System Software Update tab. 
NP-31866-4 error code on PS4
  1. Now, select the Update Now button. 
  2. Finally, click on Accept if there’s an available update to install the latest software for your Playstation 4

Try loading your game saves after the update to check if the NP-31866-4 error code would still occur. 

6. Change Your DNS Settings. 

A problematic DNS could also be the reason for the NP-31866-4 error code on your PS4. Your console may be having a hard time communicating with PSN’s servers, which explains why you can’t load your game data. 

To fix this, follow the steps below to change your PS4’s DNS settings: 

  1. Access the Settings of your Playstation 4 and go to the Network tab. 
NP-31866-4 error code on PS4
  1. Now, go to Internet Connection Setup and choose the Use Wi-Fi option. 
  2. After that, select Custom and set your IP Address settings to Automatic
  3. For the DHCP Host Name, choose Do Not Specify and click on the Manual option for your DNS Settings
  4. Next, input the following values to their corresponding fields: 
  • Primary DNS -
  • Secondary DNS -
NP-31866-4 error code on PS4
  1. Finally, set the value of MTU Settings to 1456 and choose Do Not Use for the Proxy Server

Once done, try accessing your game saves from the PS Cloud to check if the NP-31866-4 error code would still occur. 

7. Report the Problem to PSN. 

If you still see the NP-31866-4 error code when accessing your game data, we suggest that you ask the help of the experts. 

Visit Playstation’s official website and get in touch with their customer support from there to report the problem you’ve been experiencing. Provide your PSN account’s details, the version of your PS4, and the game you are trying to upload or download your progress.

NP-31866-4 error code on PS4

This ends our guide for fixing the NP-31866-4 error code on the PS4. If you need to clarify something or have other concerns, don’t hesitate to leave a comment below, and we’ll do our best to help you out. 

If this guide helped you, please share it. 🙂


  • John Sixto

    John is a staff writer at Saint and comes from a SAP ABAP development background. He has a Bachelors in IT and has been writing since 2018, with over 500 posts published. He loves to build PCs and has a deep curiosity in understanding how different components and configurations work. John spends hundreds of hours at a time, researching and testing the software and apps, before he proceeds to write about it. LinkedIn X (Twitter) Website

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