I was using the old 2.2 version for about 3 months. I used it along with the 'JJ's XMR-STAK HashRate Monitor and Restart Tool' on Windows 10 with the blockchain AMD driver (Aug 2017). Mining rig contains 4x Vega 64 and one Vega 56. On a good day it will restart itself about 5-6 times "soft restart" and 2-3 times "hard" (OS restarts itself). On a bad day it will go up to 15-20 softs, and 4-5 hards.
Recently I've installed the new 2.3.0 version (monero7) and now I experience about 30-40 soft restarts and about 10-15 hard using the exact same configuration settings for the cards and the miner.
Do you experience similar problem with XMR-Stak 2.3.0?
Any idea how to avoid it?
(btw, I've tried to use the newest AMD driver - not just the hashrate was about 10% lower and in the same time power consumption 10% higher but also the restart rate was about the same).