I think I have success on this front. Maybe......
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I setup the SmartGuard on "Lost Video" & generated a ring tone when it happens. Then I enabled the SmartGuard function. I removed power from the camera for a few seconds & let it restart. I did all this before work yesterday.
After work yesterday I checked the Log (from the General Settings & Utilities Icon - the "Gear" on the Main Console). I selected "All" in the drop down menu for yesterday's date, pressed the search key & BANG: the Lost Video records showed up. I only setup SmartGuard for Lost Video and that's all I got. Cool.
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Until...... I then searched earlier dates. I turned my system on for the 1st time on Saturday. When I searched all for earlier dates I also get Lost Video records for each date between then & now. I also see D-ViewCam events like Enabled SmartGuard, Enabled Recording, etc. show up. No Motion Detection - just key events that the system recognized as worthy. Including Lost Video.
So now I'm not sure if the SmartGaurd has actually caused logging of this data or not. It's possible it was there all along & I just never opened the log from the "Gear" Icon before. I have more experimenting to do but it's cool that I can find the Lost Video detection records now.
Now I just need to nose around a little more to find out how long the each disconnect lasts. I'm trying to establish the "availability" of the system.