It seems to be an issue with the sync client. So any data lost may need to be restored from local cache or backup client side, wich could be a mess.

I have never trusted sync-to-cloud solutions. There’s to much margin for local fuck up’s. I can’t tell you the amount of shit I’ve had my hands in trying to salvage lost files doe to this.

PRTG Network Monitor can do just that. It’s free up to 100 sensors.

Not that proxmox is unstable, but it’s not like it never crashes.

I’ve been running Proxmox for 10 years, only rebooting due to power outs or upgrades, with uptimes reaching 3 years. Never has it had as much as a hiccup.