Hi everyone,
I’m experiencing unstable Ethernet link negotiation on a small Aoostar WTR Pro mini-PC (Ryzen 7 5825U) running Proxmox VE.
The onboard NIC is Intel i226-V rev 4.
Symptoms:
Link speed frequently drops between 2.5 GbE ↔ 100 Mb - 2.5Gb is only stable without any traffic
Behavior is inconsistent — sometimes the link stays stable for a while (1 Gb), then randomly renegotiates.
Using the same cable and switch port, Windows 11 with official Intel drivers works perfectly fine — stable 2.5 GbE, tested with iperf3 for long sessions, no drops.
Environment details:
Proxmox VE: 9
Kernel: 6.14* [edit: switched to 6.17* - the same issue ]
NIC: Intel i226-V rev 4
router: Ubiquiti Cloud Gateway Fiber (2.5 GbE capable)
Tried so far:
Disabled and re-enabled auto-negotiation via ethtool
Forced 2.5 GbE with ethtool -s eno1 speed 2500 duplex full autoneg off
Checked cables and ports (all tested and working fine on Windows)
Adjusted BIOS settings related to power etc...
Disabled EEE
Updated Proxmox and kernel to latest available version
The issue seems specific to the Linux/Proxmox driver or power management behavior.
Has anyone experienced similar instability with i226-V on Proxmox or found a reliable workaround (driver options, kernel parameters, or firmware update)?
EDIT: Interesting - fresh install (6.17) on different nvme is handling kind of forced on router 2.5 Gb, previously 2.5Gb had several thousands droped packages
--
DP
I’m experiencing unstable Ethernet link negotiation on a small Aoostar WTR Pro mini-PC (Ryzen 7 5825U) running Proxmox VE.
The onboard NIC is Intel i226-V rev 4.
Symptoms:
Link speed frequently drops between 2.5 GbE ↔ 100 Mb - 2.5Gb is only stable without any traffic
Behavior is inconsistent — sometimes the link stays stable for a while (1 Gb), then randomly renegotiates.
Using the same cable and switch port, Windows 11 with official Intel drivers works perfectly fine — stable 2.5 GbE, tested with iperf3 for long sessions, no drops.
Environment details:
Proxmox VE: 9
Kernel: 6.14* [edit: switched to 6.17* - the same issue ]
NIC: Intel i226-V rev 4
router: Ubiquiti Cloud Gateway Fiber (2.5 GbE capable)
Tried so far:
Disabled and re-enabled auto-negotiation via ethtool
Forced 2.5 GbE with ethtool -s eno1 speed 2500 duplex full autoneg off
Checked cables and ports (all tested and working fine on Windows)
Adjusted BIOS settings related to power etc...
Disabled EEE
Updated Proxmox and kernel to latest available version
The issue seems specific to the Linux/Proxmox driver or power management behavior.
Has anyone experienced similar instability with i226-V on Proxmox or found a reliable workaround (driver options, kernel parameters, or firmware update)?
EDIT: Interesting - fresh install (6.17) on different nvme is handling kind of forced on router 2.5 Gb, previously 2.5Gb had several thousands droped packages
Code:
iperf3 -c 192.168.50.150 -t 30 -P 1
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-30.00 sec 8.21 GBytes 2.35 Gbits/sec 892 sender
[ 5] 0.00-30.00 sec 8.20 GBytes 2.35 Gbits/sec receiver
Code:
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-30.00 sec 3.28 GBytes 940 Mbits/sec 125 sender
[ 5] 0.00-30.01 sec 3.28 GBytes 939 Mbits/sec receiver--
DP
Last edited: