I had 3 of them some months back that had a problem with the connection.? Port 20060 worked but all 3 would periodically drop offline and stay offline till I did something like unplug the display or reboot the processor or stood on my head...? Finally contacted Sony and they said update the firmware - which I did.? Displays never showed that the firmware # changed but the problem went away.? Beat on it for ~2 weeks before that - while working on other stuff.
