Network issue since upgrade to 9.1.2 on dl380 Gen10+ server

Davvv

New Member
Dec 31, 2025
1
0
1
Hello team,

I recently installed a new PROXMOX 9.1.1 cluster , everything was working fine.
Then we ugpraded both nodes to 9.1.2 and then the network is not working anymore.
We use Mellanox ConnectX 6 10/25G network cards, all firmares are up to date on the server.
All NICs are up, bond are properly configured.

Weird thing, when i access the server through the ILO console and runa "tcpdump -i nic0 -e arp" command the network is working fine, i can then ping/ssh/https the server. But if i stop the tcpdump command, the server is not reachable anymore.

Any ideas ?

Thanks in advance.

Regards,
Davvv