I've been trying to get NUT to monitor my Tripplite UPS that is USB connected. It never was very stable on either of my PFSense boxes, using 2.4.4 of PFSense.
I can get it to poll and retrieve information, but then minutes or hours later its "Failed to retrieve data from UPS", and I need to SSH in, go to shell, su, run uspsd -c stop, then run upsd, then it works again for a few minutes or maybe even an hour.
Any idea why it just stops after some time?
Any logs? Sadly nut itself is badly maintained