[arm-allstar] Fresh upgrade issue.

[am_fm_radio at yahoo.com]

During the bitter cold last 4-5 days. I decided to upgrade and start fresh.I have a RPI3B+ and a SHARI UHF.It has been working flawlessly for 2-3 years, and I had heard the new Archlinux-Asterisk buildimproved ECHOLINK and so on.
I also decided to remove the Black 8GB micro SD card of unknown origin and replace it with a 
SANDISK 16GB Class 10 that I had on hand.
So I did a total renew as if the RPI-SHARI was brand new.. 
Subsequently I had 2 problems First I resolved.  The problem post renew, was 3.6.A,B touch tones would not decode on my Anytone Term-*R and a Radioditty GD77... Yet all was fine with my Yaesu FT70D. 
I resolved it by following Patrick Perdue's Shari audio set up that is found on Blind Hams.com
The second problem is baffling me... When in the shack, I monitor Blind Hams Talk group #506315 as our club WØVFW repeater I take care of also monitors it. We have 4 blind hams in the membership. 

I am finding I connect using the *73<NODE>  then leave the ham shack -work, food-sleep and come back later The ALLSTAR NODE is "REPEAT ONLY"This has been going on for a few days. I decided to SSH into the RPI and issue the command "uptime" to find that my RPI was rebooted any where between a hour ago to 6 hours.. Time away can be 8-10 hours, SO I don't know how many time it rebooted during my absences.  

This is new since the "REBUILD". Same power pack as before.  My "Official"  wall wart and my entire ham station is on a IBM 1000VA UPS- None of my 4 other computers in the ham shack are affected. 
Ir's almost like something is telling it to reboot. BTW I have a new in the box RPI3B+ I opened the box and tried it. Same problem.. That's why I've been fighting this for 4-5 days now..

Am I missing something? or need to configure something?
Alert- It just rebooted.. time between reboots -- about 2 hours.. 8:38 to 10:30.... 

If no response, I just received 3 new SANDISK ULTRA MicroSDHC cards in the mail .. Next would be burn one. I do have my current SD card saved.. That SANDISK came out of a phone where I removed it for a larger one. I did do a hard slow format on it before loading new HAMVOIP...

Larry W8LM