I have a 6 DVR that started deleting all recorded shows Monday night

I keep my recording ah 10% or less. So no, my recorder was and is not full. but that wouldn't explain why ALL of them get erased.

Ok, when I say everything is gone I mean everything. There is no Deleted recordings directory either. Just a message in huge font stating that there is nothing to display. 

I went so far as to change the time that the box auto reboots itself at night to a time after I get up. The next morning, my recording were still there (you see the box did not reboot yet) I then unplugged it and went to work. (I had set the time for the auto reboot to take place between 6 and 8 am. - I get up for work at 4am). when I got home at 1300 (1PM) I plugged in the box and let it boot up - My recordings were GONE!

On a side note, in the morning when I checked on the recordings on the box, I also checked the Contour app on my phone - the recordings were showing up there as well. When I got home I again checked my phone app the see the recording, they at that point were still there. After the boot up of the box, The recording on the box and, AND the contour app on my phone.. no recordings anywhere.

Do you suspect the DVR deletes your recordings after its whenever-scheduled auto-reboot?  Why does it have to reboot?

How long have you had this DVR?  If it has to auto-reboot, I'm sure your recordings weren't deleted in the past, right?  This just started happening?