Tried a fresh copy of Raspberry PI OS and ... it works. All USB ports and Ethernet are working. Great! Not a hardware issue after all. Feel a little silly for not having tried that in the first place, but oh well. Anyway, now I'd like to try and fix my NextcloudPi without having to set it up from sc...

Cheers everyone, I'll try and report back!

My apologies if this has been asked before, I've spent quite some time searching the forums but couldn't find the exact same issue I am encountering. I am using the Pi for a private cloud server using nextcloudpi. Overnight, all USB ports and Ethernet appear to have stopped working. Ethernet LEDs ar...