I have been using unraid for a few years now, and was on 6.8.0 without any issues before, using an older intel board and an i7-3990. Recently I replaced that board and CPUwith an Asus B450 board and Ryzen 3 3200G.
Since then, once a week or so, sometimes longer, the system becomes unavailable on the network. It cannot be pinged, and my router shows it as offline (system is turned on and there weren't any power outages or brownouts). If I turn the system off by pressing the power button and letting Unraid do its thing to turn off, once the systems comes back up, I always end up having the same data drive (same drive each time) in a disabled status.
schumachertower-diagnostics-20200310-2115.zip