Error Code

How to Fix Error Code WS-37400-4 on PS4 and PS5?


A few PS4 and PS5 owners are currently facing error code WS-37400-4 on PSN. Some players are reporting that they could not sign in to PSN. We post some fixes and tips to fix the error code WS-37400-4.

Read more details here.

What is error ws 37400 4?

This error occurs when a user fails to login to the PSN network. The error code WS-37400-4 is related to network connection issues. Sometimes it is a PSN backend issue or PSN is offline.


How to Fix Error Code WS-37400-4?

Changes Router DNS

To do this, access your router’s web interface and log in with the admin credentials. Find a DNS server option on one of the pages. The option may be under LAN or DHCP server settings.

Change your Router DNS to the following.

Change your DNS



Make sure your PS4’s system software has the most recent update:

  • Select Settings at the top of the PlayStation home screen.
  • Choose “System Software Update” and allow any system updates to install.
  • Reboot your PlayStation 4.

Clear your PS4’s cache:


  1. Press and hold the PlayStation button on your controller.
  2. Select “Turn Off PS4”.
  3. Let the PlayStation 4 to fully power down and wait for 10 to 20 seconds.
  4. Restart the PlayStation 4.

A PSN backend update will fix the error WS-37400-4.