Normally, when you "turn off" a ViP DVR (612/722/722k) with the remote it goes into standby mode with a screen saver that gives you a bunch of useless advice. It will go into standby mode automatically after a period of time of inactivity - no timers kicking on and no user remote activity.
You don't turn off these boxes literally by switching off or disconnecting the power to them. When you do that and repower them they will do a hard reboot, have to link to the satellites (acquiring signal) and online services, download a guide from a satellite, etc. That's a "no, no." You save the hard reboot process for when things go really wrong or there's a new firmware/software update.
Every night the unit will download a guide update and do a soft reboot. The time for that can be set for a time when no one will be using the DVR.
If the DVR is...
- powered 24/7 and therefore presumably in standby mode overnight, and
- the nightly update/soft reboot occurs and
- each morning well after the update she turns it on only to see the acquiring signal message,
...there is some kind of problem that Dish needs to have a tech fix.