I downloaded 2fc last night at 12:33am only to have the unit auto reboot at 2:00am and then again sometime this morning. I can always tell when the unit has done this as I shut the circular light off after each reboot. These auto reboots didn't affect the 2fc download though. I don't remember this ever happening before. strange.
Unfortunately this CE is causing random reboots for what seems to be everyone using it.
My best recomendation would be to go back to the national release unless you have a high tolerance for reboots (and don't have many recordings scheduled), or you REALLY want MRV and don't want to wait another week. I'm embarassed to say I didn't personally download this week, I fell asleep right around 11pm. On that note, however, I guess I was lucky for once.