How to fix 2 main errors on PS4 - ERROR CODE WS-37397-9 and NW-31456-9 - YouTube
Can't connect through LAN cable, so story is that I took my ps4 to the girlfriends and connect to her router using WiFi but now I've brung it back home and plugged the LAN cable in it keeps popping up this error, any advice? : r/PS4Pro
How to fix error code NW-31456-9 on ps4 with best method - YouTube
Wired Connection, get this error playing Ghost of Tsushima : r/playstation
MÉTODO APROVADO) COMO RESOLVER O ERRO DE CONEXÃO NW-31456-9 NO PS4! - YouTube
Ask PlayStation on Twitter: "@Mahdiyar09 Thanks for trying! Just to confirm, are you able to log into your PSN account on our website https://t.co/9LaKN5hiFa ?" / Twitter
How to fix PS4 / Pro Error CE-39244-9 - PlayStation Tutorial - Zany Geek - YouTube