Stuck on "Retrieving..." on Roku. Can't watch live TV or recordings on iPad or Roku

I was able to view live TV and my recordings via my Roku 2 late last night, with no problems.  Tried watching via Roku this morning, selected a recorded show, and then a live show, gets stuck somewhere in the middle of the “Retrieving” progress bar.  Tried watching on my iPad, and I’m stuck at the “loading” white circle.

@zenzi Any changes on this? You can try rebooting the Tablo. To do this, press and quickly release the blue reset button on the back right of the box.