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How to fix error NW-31456-9?

Published on April 10th, 2022

The nw 31456 9 error code is a network error that can occur when trying to connect to the PlayStation Network. This error can be caused by a number of things, including a slow or unreliable internet connection, a problem with the PlayStation Network itself, or a problem with your PlayStation 4. if you are encountering this error, you should first check your internet connection to see if it is the cause. If the problem persists, it is likely due to an issue with the PlayStation Network or your PlayStation 4.

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  • nw-31456-9 ps4 error code
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1. Download the latest version of Network Adapter Driver

  1. Go to the Intel website and open the drivers page.
  2. In the drivers page, find the Network Adapter Driver for your computer and click on the download link.
  3. Follow the instructions on the download page to install the Network Adapter Driver.
  4. After the Network Adapter Driver is installed, reboot your computer.
  5. If the Network Adapter Driver was installed correctly, you should be able to fix the nw 31456 9 issue.

2. Update the Network Adapter Driver

  1. Open Device Manager by clicking on the Start button, typing devmgmt.msc in the search box, and then pressing Enter.
  2. In Device Manager, select the network adapter that you want to update and click on the Properties button.
  3. On the Driver tab, click on the Update Driver button.
  4. In the Update Driver dialog box, click on the Browse my computer for driver software button.
  5. In the Browse my computer for driver software dialog box, navigate to the location where you installed the driver for the network adapter and select the driver file.
  6. Click on the OK button.
  7. Click on the Update Driver button.
  8. In the Update Driver dialog box, click on the Finish button.

3. Disable the Network Adapter Driver

To disable the network adapter driver, follow these steps:

  1. Open Device Manager by right-clicking on My Computer and selecting Device Manager.
  2. In Device Manager, select the network adapter you want to disable and click on the Driver tab.
  3. Click on the Uninstall button.
  4. Click on the Yes button when the confirmation window pops up.
  5. When the uninstallation is complete, close Device Manager.

4. Reinstall the Network Adapter Driver

  1. Open the Device Manager by clicking on the Start button and typing "device manager" in the search box.
  2. Right-click on the network adapter that you wish to reinstall and select "Update Driver".
  3. Click on the "Browse my computer for driver software" button.
  4. Locate the network adapter driver file that you downloaded from the manufacturer's website and click on it to open it.
  5. Scroll down to the "Update Driver" section and click on the "Browse" button.
  6. Locate the driver file that corresponds to the version of Windows that you are using and click on it to install it.
  7. After the driver has been installed, close the Device Manager.

5. Roll back the Network Adapter Driver

  1. Open the Device Manager by clicking on the Start button and typing devmgmt.msc in the search box.
  2. Under Network Adapters, right-click on the network adapter that is causing the issue and select Roll Back Driver.
  3. Click on the Update Driver button to install the previous driver.
  4. Reboot your computer.

If you didn't find success with an option above, then try:

  1. Uninstall the Network Adapter Driver.
  2. Install the Network Adapter Driver.
  3. Enable the Network Adapter Driver.
  4. Restart the computer.