Thanks for the fast replies.
I bought my R-Box from Canary along with the power supply, so I assume it is adequate.
IF the cause is an unstable pool, I am wondering why that problem doesn't happen to my Antminer U2's? I should have been more specific, that there are 3 devices (R-Box and 2 U2's) but the only one that dies is the R-box.
Difference in difficulty settings on the pool side between the two types of miners most likely as I have noticed similar issues with my R-Box units onmy backup pools.
edited:grammar mistake (wrong word)