Proxmox: Losing network with Intel I-219v
Recently migrated my homelab ESXi to Proxmox VE, and while things mostly went smoothly, one node would randomly hang (mostly during large transfers or under sustained network load but sometimes when idling…).
I plugged in a monitor to check logs and… confirmed the cause with a quick dmesg:
e1000e: Detected Hardware Unit Hang
Turns out this has been a known issue for years with Intel e1000e NICs (like I217-LM, I219-V, 82574L, etc.). These “aging” chips choke when offload features are enabled under modern workloads.
Read More