Just passing on what I was told. Thinking back to my beginning with RA2 I defaulted a main without knowing this and had to reactivate most of the devices. Seem to remember some of them reactivating on their own. Been many years so a bit fuzzy. This was before we had the reactivate option. The few times I had a main go down tech wasn't able to repair. Firmware, pushing a new boot or OS file didn't work so new main it's was.