Question: Apple TV Death after update?
Seen quite a few people with this problem. After the update the light just blinks. After unplugging ethernet, it can't find router. Some people reset the router and said that worked. Others restored by plugging into iTunes and got it working. I did all of the above multiple times, still death. Going to have to take it into the Apple Store tomorrow I guess. Unless another update comes that fixes this.
Also the weird part, I know it's under warranty since it isn't even a year old, but I went to check the serial number and Apple said the serial number wasn't found.