I was just speaking to a friend who is with Verizon Tech support. He says that they are having a massive issue with the Programing guide on the STB's at this time. It is nation wide. They are saying that the symptoms are boxes that will not load the guide. Boxes that are unresponsive and will not change channels and boxes that have a black square on the screen, and others that keep rebooting themselves constantly.
He warned to not reboot the STB, this will only make things worse. He said the only thing to do is wait. They cannot send any messages to the boxes and anything you do will just make it worse at this time. Just wait it out is the only thing to do at this time. This is a nation wide situation.