Not finding channels

Just got the Tablo an hour agao and trying to do the set up. I get as far as “scanning channels” and it just spins without finding channels. When i connect the antenna cable directly into the TV, i am able to find all my channels.

Any ideas?

When booted it up, i let it do all the upgrades it found.

@crimkid Do you have a hard drive attached - if so, what kind of drive?

Feel free to send me the details directly.