[SOLVED] Proxmox server network unreachable

[DomF]

Hi,

I had a working proxmox server running and I updated the bios of the motherboard and now the machine is unreachable on the network. From the server (logged on locally) I can not ping the router or any other machine on the network. I'm not sure how to proceed.

Running dmesg reveals this at the bottom of the log:
IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
vmbr0: port 1(veth104io) entered blocking state
vmbr0: port 1(veth104io) entered forwarding state

Not sure what that means.

what can I try?

 

[dcsapak]

did the network interface name change? then you have to adapt the /etc/network/interfaces file

 

[DomF]

Thank you. Yes that was it.

In the /etc/network/interfaces file my network device was enp30S0 but when my machine now boots up (from looking at dmesg) the network device is enp3s0. So, I renamed the device in my /etc/network/interfaces files from enp30S0 to enp3S0. On rebooting the machine the networking device is enabled and the machine is back on the network.

Thanks!
Dominic