Any status on this? 
I sent the code 64 log to the techs and still waiting on a response back about the previous log entries. Engineers/vendor will hopefully respond back soon.
I haven't emailed the techs like GB42 asked me to about the setup.
I did do several things in the meantime and had some other observations.
One time - the thing reset with syswatchdog code 64. But the menus and everything were back to normal!
It's "crashing" syswatchdog code 64/reboot at least 5 times a week, no more than once per day.
I know that the WD UltraPassport usb 3.0 drive without external adapter is some what frowned upon/questioned - it has been running for 1 year with the 4 cams. I doubt this type of writing fragments the drive.
Anyways - as a test, I bought a new 4 TB WD drive with external power adapter. After ultra passport filled up - it started writing to the new drive. Next day - crash syswatchdog code 64/reboot.
I removed the WD ultra passport and only have the WD drive with the external power adapter - since then 3 crash/reboots.
I haven't seen any other connections in the log other than local, and my external IP address.I think it was a hacking attack - they'd be a little more forceful than once every few days?