[Nut-upsuser] APC SmartUPS powercycles when power returns

[Manuel Wolfshant]

On October 11, 2022 3:29:46 PM GMT+03:00, Andrea Venturoli via Nut-upsuser <nut-upsuser at alioth-lists.debian.net> wrote:
>Hello.
>
>I've got an APC SmartUPS 1500: it's connected via USB and I'm using the usbhid-ups driver. This used to work properly until recently.
>
>Now, when power goes out it keeps on going on battery potentially for several minutes, but, the moment line returns, I hear a click and power is cycled on the outlets (so every computer is rebooted forcily).
>
>I'm thinking about a hardware issue, but could it be that NUT is instructing it to do so?

Do a test with the data cable disconnected so that nut cannot "instruct" it to do anything.




>
>All I see in the logs before the nasty event is: "upsmon[89989]: UPS APC at localhost on battery".
>So I don't think a low battery status was reached and/or a shutdown initiated.

Indeed, you should also see a sequence corresponding to LB and shutdown.


wolfy