Joe, many thanks for digging this out. Clearly then it is not Intel or even a Lenovo problem (outside of the fact that neither protested against this Microsoft behavior)
To answer your question, I am certainly using the latest ProSet - the computer is only 5 days old, and I have just downloaded it from intel download website.
But it is apparent from the that brief discussion on the microsoft discussion that this is one of their f****ps, and what's worse, they (and some people) think it is acceptable.
i have three windows 7 pc's, a mac, an iphone, a blackberry, an ipad, an android tablet inside the house that work fine with my router. i have to reconfigure the whole system to make this one laptop work? but more to the point, i have no control over all the networks around the world that i might have to connect. I've been to several foreign countries over the past two years, on 5-10 day visits. Pretty certain all the small businesses there (cafes and hotels) are not tripping over themselves to get compliant with windows 8 new requirements. Had i had this laptop with me, it would have been nothing more than a pretty brick.
Oh my, have i finally came to having to buy a mac....?