It sounds cliché, but most DPI errors are caused by "stale" routing tables in your modem or router. Turn off your PS4 and unplug it. Unplug your router/modem for at least 30 seconds.
It sounds cliché, but most DPI errors are caused by "stale" routing tables in your modem or router. Turn off your PS4 and unplug it. Unplug your router/modem for at least 30 seconds.