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.
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.
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:
Clear your PS4’s cache:
A PSN backend update will fix the error WS-37400-4.