Lost Access to Proxmox over network after lightning (resolved)

Feasoron

New Member
Jul 22, 2025
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I'll start off by admitting I am very new to proxmox - I had really only just gotten it set up and some containers running on it when this happened - so I apologize if I am not totally accurate with my terms.

I am running Proxmox on an old Dell PowerEdge R330. This has a dedicated IDRAC port and two ethernet ports for the VMs. It was running fairly well, but then we got hit by lightning. While all of my power is run through surge protectors, my coax in for internet was not. The surge fried my modem, the Orbi RBR850 plugged into it, and the 1st non-idrac ethernet port no longer shows any lights, no matter what is plugged in. The IDRAC software shows the link as down, but no other useful information. Of course that was the connection that proxmox was using and I can no longer access the web interface.

I believe I should be able to reconfigure proxmox to use the good port (34:17:EB:F0:AC:08) rather than the bad one (34:17:EB:F0:AC:07), but I am at a loss as to how to do so. I ran ip a and cat /etc/network/interfaces in the virtual console. Unfortunately this does not support copy/paste, so I was forced to attach them as screenshots. Any help getting back up and running would be hugely appreciated.
 

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Hi,

In your "/etc/network/interfaces" replace "eno1" by "eno2" on the line with "bridge-ports".

Best regards,