So after 2 rounds with tech support, they are aware of the issue, and it sounds as if they have narrowed it down to certain servers, so it does not affect all Tivo units. They expect a solution within 24 hours, but recommend leaving the network disconnected until then. The cruddy part is you have to call in and ask if the fix is available yet, and then hope you can simply connect the network and get an update and it will all work. :)