This problem bugged me for two days. Where my PS4 cannot connect to internet via Wifi. Message from Test Internet Connection function looks like below: When do Setup Internet Connection, Error NW-31247-7 will occurred. At the same time, all my other devices e.g. laptop and iPhones can connect to internet without issue. Playing games via mobile hotspot works! Action that WONT work: Ask internet service provider (Unifi) to reset port Restart All PS4, Router & Modem Setup Internet Connection on PS4 again Change Wifi DNS to Google DNS 8.8.8.8 & 8.8.8.4 Solution: Router - "restore factory setting" PS4 - "initialization" --> "restore default setting"--> setup PS4 again Setup PS4 involve mainly language, time zone, wifi, camera (if have) & PS sign-in. All games still there. Wallpaper will be reset. PS: I am not sure whether it is only router problem. You could try reset only router first. You can use same wifi name a...
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