DLNA working but PS4 app can't connect

Yeah that’s frustrating you said you were using your PS4 for years with Plex.

Can you screenshot the “Unavailable” it’s giving you, and would you get us both player and server log files in debug mode demonstrating nothing else but a fresh hardware reboot, 10min of peace, and then you demonstrating the issue on that PS4? Redacting personal info is great.