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.
Your router might be identifying the PS4's data request as "suspicious" and dropping the packet. dpi get info error ps4 link
Select to get a fresh 8-digit link code rather than relying on the automatic search, which often triggers DPI timeouts. It sounds cliché, but most DPI errors are
If your router's firewall is the culprit (inspecting and blocking the packets), placing the PS4 in the can bypass the inspection. Your router might be identifying the PS4's data
Plug the router back in, wait for it to fully boot, then turn on the PS4. 2. Update System Software
If you are getting this error specifically while linking a device: On PS4, go to > Remote Play Connection Settings . Ensure Enable Remote Play is checked.