WS-37337-3 appears during PSN maintenance windows and strict firewall setups.
Server or clientUpdated 2026-06-11
WS vs CE vs NP
WS codes are often web/service layer — still start with PSN status and DNS fixes.
How to fix step by step
- 1Check PSN status.
- 2Test internet on PS.
- 3Restart router.
- 4Manual DNS 1.1.1.1.
- 5Disable router firewall temporarily to test.
- 6Wait if maintenance announced.
How WS-37337-3 differs from related codes
- Error NW-31201-7: PlayStation Network could not connect to the server — DNS or PSN outage. (server or client)
- Error NP-31739-3: PlayStation Network sign-in failed with NP-31739-3. (server or client)