I got the exact same problem with the fenvi t919. Bluetooth works fine wifi too (but i always need to select to connect). I know that the bluetooth has a stable connection because of the magic keyboard mouse and trackpad that work flawlessly. Just handoff and continuity doesnt work. My ios device doesnt find the bluetooth but the pc does find the phone. Then says connected for a few seconds amd then a message but im not near the pc so i dont know the exact message..