Actually I should correct that. Yes a reboot makes it come back with a Home Hub 3000 UI, but it also happened spontaneously at about 1am Monday (Sunday night).
Mine seems to pull (or be pushed) the Bell UI (always disabling my connection) when the power is cycled. A tech came by today and didn’t know what to do about it, but phone support has been helpful. They told me that they can right the UI version on ...