The DVR system shuts down…?
Open the system setting and check that the “Shut Down” button is not enabled. If this box is checked, make sure you uncheck it. If this is happening at a certain time of day of each week, check to make sure someone is not accidentally shutting off a switch that the DVR is connected to. Check your power management settings in the control panel under “Display Options/Screen Savers/Power”. Check to verify all “Suspend modes” and “Power Down” options are set to “Never”. Survey the area where the DVR system is installed. If it is in an enclosed box or cabinet, the system could be getting way too hot, and this will cause the system to shut down.