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Sony Playstation users are experiencing a serious hurdle today. The issues are related to creating or joining a newsgroup when users get error NW-31473-8.

So far, the Japanese company has not reported anything on its social media accounts. However, we are constantly monitoring the issue and will update the story as soon as we have more information.
Por ende, parece que este problema puede tener varias causas, que todos los usuarios de la consola afectados deben conocer y arreglar por su cuenta. Es viable que tenga problemas para conectarse a la red PlayStation, falta de coincidencia de TCP / IP, configuración de red incorrecta, etc., etc. Si el problema está asociado con su conexión de PSN, tendrá que esperar a que se repare el server.
Check the status of the PSN server
You can basically go to the PlayStation Network service status page to check if the server is being shut down or repaired.
Now if there is an obstacle with the server, please wait. There is nothing else you can do.
Otherwise, if everything goes quite well with the PSN service, check the following method.
Power cycle the PS4 and the modem router.
The cache, los problemas de red o una conexión a Internet lenta además pueden causar el error de PlayStation NW-31473-8. Esto podría deberse a su red doméstica o su consola. No obstante, si se encuentra en el campus de una escuela o en una red privada, su conexión a Internet puede estar protegida por un firewall. Puede pedir ayuda a su administrador de red.
Turn off your PlayStation Network 4 and the modem / router.

- Unplug the power cord for at least three minutes.
- Turn it back on and see if the connection or party problem goes away.
- If the error doesn't go away, try checking your network settings.
- If you are using a separate router, connect the PlayStation Network 4 directly to the modem to bypass the router's firewall.
- If the PlayStation Network 4 uses Wi-Fi, make sure the PlayStation Network 4 receives a strong Wi-Fi signal or uses an Ethernet cable.
- If PlayStation Network 4 uses an Ethernet cable, make sure the cable is in good condition or try changing the LAN port.
- If the problem persists, call your Internet Service Provider.
If the next solution does not work, it is possible that the PSN server has server problems. The only solution is to wait until the server is stable.
Check the network settings of your PS4

It is also possible that, in some cases, the network settings of the PS4 are out of order or configured incorrectly. Therefore, you should also check and adjust the network settings on your PS4.
- Turn on your PS4 console> go to the main control panel.
- Use your controller to enter the setup menu.
- Select Network> Set up Internet connection.
- Depending on your use, select either WLAN or LAN cables.
- Seleccione Personalizado> Elegir automático para la configuración de la IP adress.
- Select Do not specify as DHCP hostname.
- Seleccione Manual para la configuración de DNS> Ingrese 8.8.8.8.8 para DNS primario.
- Enter 8.8.4.4 for secondary DNS.
- Select OK and go to the next option> select Do not use for MTU and proxy settings.
- Once everything is absolutely set, restart the console from the main menu.
Reboot or reboot the router
If you previously determined that error code NW-31473-8 is not caused by a server crash, the most likely cause of this error is TCP or IP inconsistency.
This is often due to corrupted temporary data. Fortunately, many affected users have confirmed that they were finally able to fix this problem by forcing the network device (router or modem) to update all important TCP and IP information.
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