I had three days of stability. Tablo support logged into it today and saw the three days basically questioned me on why they saw manual resets (i was trying to get it into heartbeat mode) but didn't say anything to what else the logs had. Then at 12:15 today it went down again and PRTG had to reboot the power outlet to cycle it. Then at 12:40 it went down again.
The changes I made where:
1. Add active cooling, put a fan under it that's made for cooling a laptop
2. Make the statically assigned DHCP have an infinite lease time, which took effect after I restarted the tablo.
It wasn't strange to have a period of several days of stability, but I was really hopeful that this would fix it. now i have to get home, put it into heartbeat mode again and get support to log into one more time and pull the logs to determine why is continues to go down.
Wish me luck.