Phil is right - sounds like the Starbook has gone screwy. I updated all my Starbooks after the latest release (I had 2 at the time, only 1 now), and I still use my Starbook today on my SXW without issue. I even updated the one I sold Phil, so I know he's not talking horse nuggets as he usually does
I have the WIFI box too, but honestly don't feel the need, as the Starbook does everything I want easily. Phil just does it because he's a techno-junkie
Reset the Starbook to factory, then reinstall the update. I just plugged mine in and checked the date, and it is correct, and 2017. Also, but not sure, perhaps you may need to change the Starbook's internal battery too - that may be on it's way out.