Just cron a restart

I actually have an issue that is similar. My server goes unresponsive/freezes after N hours of uptime. N is a variable, so far meassured between 6 and 72 hours. I tried working around it, by auto-rebooting the server each night. But it still sometimes happen before the 24 hour mark.

Nothing in logs, so my best option is to auto-reboot at this time. 😆

Do you have an Intel ethernet NIC? That’s a known issue, in particular for more recent Linux Kernels used in Debian distros. This also means it extends to TrueNAS, Proxmox, etc. There’s a known fix for it too (or you could just downgrade the Kernel).