PlayStation 4 Error Code NP-31739-2: How to Fix It

Easy 15-30 minutes Medium Severity Verified June 2026
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Error Code
NP-31739-2
Brand
PlayStation 4
Product Type
game_platform
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-30 minutes
PS4 error code NP-31739-2 means your PlayStation 4 cannot connect to the PlayStation Network because it failed to resolve a DNS (Domain Name System) address. In plain terms, your PS4 is having trouble translating Sony's server names into the IP addresses it needs to go online. This is almost always fixable at home by adjusting your network settings or switching to a faster, more reliable DNS server.
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Tools You'll Need

How to Fix Error Code NP-31739-2

  1. Restart Your PS4 and Router

  2. Run the PS4 Network Connection Test

  3. Manually Set Your DNS to Google or Cloudflare

  4. Switch from Wi-Fi to a Wired LAN Connection

  5. Check for PSN Service Outages

  6. Update Your Router Firmware

    Do not power off your router while a firmware update is in progress, as this can permanently damage the device.

  7. Restore PS4 Default Network Settings

  8. Check for IP Address Conflicts on Your Network

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When to Call a Professional

If you have tried all steps above and your PS4 still shows error NP-31739-2, the issue may be with your Internet Service Provider's DNS infrastructure. Contact your ISP's technical support line and tell them your DNS resolution is failing — they can run line diagnostics and push corrected DNS settings to your modem remotely. If your router is very old, your ISP may also recommend replacing it. Additionally, if you suspect a hardware fault with your PS4's internal network card (for example, the LAN port is physically damaged or Wi-Fi never detects any networks), contact Sony PlayStation Support or visit an authorized repair center, as internal component repair requires specialized tools.

Frequently Asked Questions

What does PS4 error NP-31739-2 mean?
Error NP-31739-2 means your PS4 failed to connect to the PlayStation Network because of a DNS (Domain Name System) error. DNS is the system that translates website and server names into IP addresses. When it fails, your PS4 cannot find Sony's servers, even if your internet is otherwise working.
What is the best DNS for PS4 to fix NP-31739-2?
The two most reliable DNS options for fixing PS4 DNS errors are Google DNS (Primary: 8.8.8.8, Secondary: 8.8.4.4) and Cloudflare DNS (Primary: 1.1.1.1, Secondary: 1.0.0.1). Both are free, fast, and more stable than most ISP-provided DNS servers. Cloudflare is often slightly faster and also privacy-focused.
Can NP-31739-2 be caused by a PSN outage?
Yes. If Sony's PlayStation Network servers are down or experiencing issues, your PS4 may display error NP-31739-2 even though your home network is working perfectly. Always check status.playstation.com first before spending time troubleshooting your own equipment.
Will fixing NP-31739-2 delete my PS4 game saves?
No. Changing DNS settings and resetting network or default system settings does not delete your game saves, downloaded games, or account information. Your game data is stored separately. If you ever need to do a full factory initialization, back up saves to a USB drive or PlayStation Plus cloud storage first.
Why does my PS4 keep getting error NP-31739-2 even after I fix it?
If the error keeps coming back, the most common causes are: your router reverting to automatic ISP DNS settings, intermittent Wi-Fi interference, or your ISP experiencing recurring DNS instability. Switching permanently to a manual DNS like Google or Cloudflare in your PS4 settings (instead of relying on automatic) usually prevents the error from returning. Using a wired Ethernet connection instead of Wi-Fi also significantly reduces the chance of recurring DNS failures.

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