@theo Thanks for the sound advice. Yes, Ive hecked netowrk and also installed and tried to use the app on several other device, all with the same "Login - Client not found" message. I've emailed Oppo support but don't know how much they can do as they no longer deal with their hardware. But I'm intrigued by the capacitance reboot. Which buttons specifically? I've googled but nothing comes up. Could there by a circuit/capacitor failure inside the unit?
@mahler123 My DAC audition is down to the Schiit and the Denafrips. They both are a significant and unmistakable improvement over the Oppo's Sabre chips.