I bought a Eaton Ellipse Eco 650 USB DIN for my Homelab. I connected it to my nas which is running OpenMediaVault because OMV has a NUT Plugin. I conneced it, it got recognised and i thought i should test it. So i switched the breaker off and my nas turned off safely after my entered time. I then went to turn the breaker back on, but after a few seconds the ups shuts the power off all devices and applies it after a second. This only happens when the nas is connected via usb.

• is there a setting that i missed in nut?
• is my ups broken (i dont think so)
• what could be the problem?

Edit: Wow, the Eaton Germany Support is terrible. I called them multiple times and i think they dont even have a Call Center. I now submitted a Support Ticket. They could at least tell you that they dont have telephone support right now. If i get a response i will update this.

Edit2: It turns out, it was a issue with the integrated nut tools in OpenMediaVault. After removing them and installing them via apt and configuring it with the config files, it works without any power loss.