Smart Hub Issue
Since we are dealing with technology, this will happen from time to time not to make the users suffer from this kind of issue but to enhance the user experience after the update. It's just like updating the OS of your Android phone or iPhone. Updating the OS on these phones ehnaces the user experience, adds more features, fix some bugs. Sometimes, a firmware upgrade is enough to enhance the user experience and fix some bugs but there are times they they need to shut down their operation.
Chances are, they did this in preparation of the new Smart Hub for their 2013 products.