- Gaming and consoles
- PlayStation 4
NW-31456-9
PlayStation NW-31456-9 on PS4: cannot reach PlayStation or the game server
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
The PS4 cannot connect to PlayStation or to the game server. Check the status of PlayStation services and the game's official website. If both are fine, it is usually a short-term issue: try again later.
Safety first
Stop and check this first
- During a PlayStation or game outage, changing network settings or resetting the console does not help and can muddle the diagnosis.
Safe checks you can perform
- Check the status of PlayStation services
- Check the game's official website
- Retry later
Leave these tasks to a qualified professional
- Do not attempt this professional task: Game support
- Do not attempt this professional task: PlayStation Support
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Game support
What they doThe game's publisher confirms whether its server had maintenance or high traffic when NW-31456-9 appeared.
They must show youthe server incident notice or record.
In writingdate and time of the incident and when it was closed.
PlayStation Support
What they doIf the error lasts days with PlayStation and the game up, PlayStation Support reviews the case with your screenshots.
They must show youwhat they checked on your account or connection.
In writingcase number and answer.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Check the status of PlayStation services
- Who:
- you.
- How:
- open the PlayStation status page on your phone or computer.
- Result that matters:
- whether any services are down or having problems.
- If so:
- wait; it is not a fault in your console or network.
- If everything is green:
- look at the game server.
- Evidence to keep:
- Screenshot of the status page with date and time.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
Check the game's official website
- Who:
- you.
- How:
- look on the game's official website or channels for maintenance or high traffic notices.
- Result that matters:
- whether the game has an incident in progress.
- If it does:
- wait for the publisher to close it.
- If it does not:
- try again later.
- Evidence to keep:
- Link or screenshot of the game's notice.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
Retry later
- Who:
- you.
- How:
- let some time pass and connect to the game again.
- Result that matters:
- whether the connection comes back.
- If it does:
- it was the brief issue Sony describes.
- If it keeps failing for days with everything up:
- keep the screenshots for PlayStation Support.
- Evidence to keep:
- Time of each attempt and result.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Gaming and consoles
- Brand
- PlayStation
- Product type
- PlayStation 4
Known code variants
- código de error NW-31456-9 PS4
- connection error NW-31456-9
- error de conexión NW-31456-9
- error NW-31456-9 PlayStation 4
- PlayStation 4 error code NW-31456-9
- PlayStation 4 NW-31456-9
- PlayStation error NW-31456-9
- PlayStation NW-31456-9
- PS4 error NW-31456-9
- PS4 NW-31456-9
What it means
For NW-31456-9 Sony describes a connection error where the system reaches neither PlayStation nor the game server. What needs separating is whether the PlayStation service fails, the game server (maintenance or heavy traffic) or a short-term problem that will fix itself. Sony does not suggest changing console settings for this code, and the code does not indicate a console fault.
Warnings and stop conditions
- Loweditorial warning
During a PlayStation or game outage, changing network settings or resetting the console does not help and can muddle the diagnosis.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
Symptoms and causes
Probable causes · in order
- PlayStation services with issuesPossible
Visible on the PlayStation status page. If there is an incident, the cause is outside your home.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
- Game server in maintenance or busyPossible
The game's official website warns about maintenance or high traffic. If PlayStation is fine and the game is not, this is it.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
- Short-term issuePossible
If both services look fine, Sony says it may be a brief problem that will be fixed soon.
Evidence: PS4 error code NW-31456-9 (PlayStation Support)
Virtual technician
Does NW-31456-9 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
PS4 error code NW-31456-9 (PlayStation Support)
Sony Interactive Entertainment (playstation.com/en-us) · 2026 · official_doc
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