[Nut-upsuser] NUT not shutting down one of three UPSs (sometimes none of them shut down)

[Roger Price]

On Wed, 25 Dec 2019, Lee Damon wrote:

> I have three APC SmartUPS 5000s. Two of them are AP9617 and one is AP9619.
> 
> One of the two AP9617 - ups3-1 - does not shut down when FSD is sent. It did 
> when I first set this system up a year or two ago but it's stopped doing so 
> since then. Resetting the management interface does not change anything.
> 
> The other two do shut down... most of the time. I've now observed two 
> occasions in the past 6 months where none of them do so.

If you swap the physical units ups1-1 and ups3-1, does the problem follow the 
hardware, or does it stay with ups3-1 ?

Roger