[SOLVED] AQC107 10g onboard ethernet card not working

thphon

New Member
Sep 22, 2024
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Hi all,

I'm having a similar issue to https://forum.proxmox.com/threads/aquantia-aqc107-dhcp-failed-during-proxmox-installation.139847/ but since it's been almost a year and that workaround doesn't work for me I decided to start a new thread, happy to move it to that thread if it makes more sense.
I reiterate the issue and differences:
- I installed the newest version of proxmox and with this atlantic AQC107 card is not working and didn't assign an IP.
- I have a 2gbps internet connection and with the same onboard card and windows it's working at full speed. I checked and I had the latest version of the firmware as well.
- I tried switching to the 1gbps port on the router but still doesn't work (this worked in the other thread).
Since I cannot access it via ssh or web interface, let me add pictures of the commands I've seen used to troubleshoot it.

cat /etc/network/interfaces

cat interfaces.jpg
enp35s0f0 and enp35s0f1 were an intel X550-T2 that I removed from the system. With that card at least I was assigned an IP from the router but I still had issues with the speed, after adding the pre-up line of code (that I found in another thread here) at least it started working at roughly 500mb/s. I tried with that code and without it for enp1s0 (atlantic) and still doesn't work and no difference in the following outputs either.

ethtool enp1s0

ethtool enp1s0.jpg
I assume that the supported link modes are because of my router that supports up to 5gbps, but I'm not sure.

ethtool vmbr0

ethtool vmbr0.jpg

dmesg | grep atlantic

Code:
[   3.029200] atlantic 0000:01:00.0 enp1s0: renamed from eth0

After taking the pictures I commented out enp35s0f0 and enp35s0f1 on /etc/network/interfaces and everything else remains the same, no change in the outputs.
I will eventually get another dual port 10g card but I would appreciate if I can get help to resolve this issue because the card works with other OSs.
Thanks in advance for your help.
 
Replacing enp1s0 on vmbr0 within /etc/network/interfaces did the trick and now it works.
The speed was really bad, running speedtest-cli it was showing below 300mb/s download and 90mb/s upload, it's connected to a 1gbps port but still.
After uncommenting the pre-up line and rebooting it went to 500-600mb/s download and 90mb/s upload, so similar to the intel NIC. I'll create a post to figure out why so slow, but for today I'll take it as a victory :)
 

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