GTek Dual 82576 Gbit | Network speed limited to 100Mbit/s


Nov 9, 2019
I install the Gtek 82576-GE-2T-X1 card on my Proxmox but i noticed that the speed is limited to 100Mbit/s.



I created a Bond with 2 NICs (enp4s0f0 and enp4s0f1), when i try to run the command below to set speed to 1000Mbit/s i'm able to do it just for one NIC, if i do the same on the second one, the network card crash.

ethtool -s enp4s0f1 speed 1000 duplex full

After reset this is dmesg output:


Where am i wrong?
Same problem: 10Gtek card 82576-GE-2T-X1 links only at 100Mbit in PVE 8.1
Same card in same phisical hw runs fine at 1Gbit per port under live Ubuntu 18LTS and Ubuntu 22LTS
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