e1000e NIC Hardware Hang Issue (Most Recent Mini PC)

Problem

Intel e1000e NIC (eno1 on 0000:00:1f.6) experiences repeated "Detected Hardware Unit Hang" errors, causing the network interface to freeze and making the server unreachable.

This is a known issue with Intel e1000e driver on certain chipsets when hardware offloading is enabled.

Symptoms

• journalctl shows repeated: e1000e 0000:00:1f.6 eno1: Detected Hardware Unit Hang
• Server becomes unreachable over the network
• PVE web UI inaccessible
• VMs still running but no network connectivity

Incident: 2026-03-02

• NIC hangs started at 14:31, recurred at 17:25
• Physical power button was pressed at 17:32 to shut down (server was unreachable)
• Server was offline ~23 hours until manually powered on at 16:57 on 2026-03-03

Fix: Disable NIC Offloading

Community Script (recommended)

ssh root@192.168.41.204
bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/tools/pve/nic-offloading-fix.sh)"

Creates a systemd service that disables offloading at boot. Select eno1 when prompted.

Manual Fix

ethtool -K eno1 gso off gro off tso off tx off rx off rxvlan off txvlan off sg off

Make persistent by adding to /etc/network/interfaces:

post-up ethtool -K eno1 gso off gro off tso off tx off rx off rxvlan off txvlan off sg off

Verify

ethtool -k eno1 | grep -E "tcp-segmentation-offload|generic-segmentation-offload|generic-receive-offload"

All should show off.

Offloading Settings Disabled

Affected Host

• Hostname: i711
• IP: 192.168.XX.XX
• NIC: eno1 (Intel e1000e, 1000 Mbps)
• Kernel: 6.8.12-16-pve