PlayStation 4 Error Code NW-31201-7: How to Fix It
Medium 30-60 minutes Medium Severity
Verified June 2026
- Error Code
- NW-31201-7
- Brand
- PlayStation 4
- Product Type
- game_platform
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-60 minutes
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Tools You'll Need
- Ethernet cable
- Computer or phone for router access
How to Fix Error Code NW-31201-7
-
Test Your Internet Connection
-
Restart Your PS4 and Network Equipment
Always power off your PS4 properly before unplugging to avoid data corruption -
Switch Between Wi-Fi and Ethernet
-
Check and Change NAT Type
DMZ removes firewall protection, so only use temporarily for testing -
Update Network Settings
-
Reset Network Settings
This will reset all system settings including user preferences and saved Wi-Fi passwords -
Contact Your Internet Provider
Parts You May Need
Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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Ethernet cable
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When to Call a Professional
Contact a network technician if you're unable to access router settings, if the error persists after trying all steps, or if you suspect hardware issues with your router or modem. You may also need to contact your ISP if the problem is on their end.Frequently Asked Questions
What does PlayStation 4 error code NW-31201-7 mean?
Error code NW-31201-7 indicates a network connection problem that prevents your PS4 from connecting to the internet or PlayStation Network, often related to NAT type restrictions or Wi-Fi configuration issues.
How do I fix NAT type issues on PS4?
Enable UPnP in your router settings, set up port forwarding for PS4 (TCP 80, 443, 3478-3480 and UDP 3478-3479), or temporarily place your PS4 in the router's DMZ to test if NAT type is the issue.
Why does my PS4 keep losing internet connection?
Common causes include weak Wi-Fi signal, outdated router firmware, ISP issues, incorrect DNS settings, or NAT type restrictions. Try using an ethernet cable, updating router firmware, and changing DNS servers.
Should I use Wi-Fi or ethernet for my PS4?
Ethernet provides a more stable and faster connection for gaming. If you must use Wi-Fi, ensure your PS4 is close to the router and consider upgrading to a dual-band router for better performance.