[Phoenix32]

First, use the Browser GUI for configuration/editing/troubleshooting, it is much more reliable and provides much more information.

My intitial impression is that of a failed hard disk, a common annoyance. To see which drive is failing, look at the Storage Menus and the Event Log.

BUT!

You mention that it loses network connection. A failed drive should not normally cause the Snap to lose network connection (I did not say "will not"). This makes me wonder about other things. What? Who knows? More troublshooting information would have to be provided to hazard a guess.

You could have an overheating chipset, cpu, memory, or power supply. You could have a failing motherboard, cpu, memory, or power supply. Any of these could cause the indications you mention, including the RAID degradation. But then of course, it is also possible a drive is failing and dragging down the power supply with it. Adequate information is just not provided to know for sure.

Look for the obvious first (like a failing hard disk or overheating), then go from there.