No network (after upgrade?)

dbaldoni

New Member
Sep 22, 2021
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Hello,

After an upgrade Proxmox doesn't connect to the network anymore. I powered on the server, I get the usual welcome screen on the host ("Welcome to the Proxmox Virtual En....") where the IP is shown. But, my Router doesn't list the host under connected devices and the host is not reachable via ping nor I can ping the gateway from promox shell.

I'm attaching a screen shot of my /etc/network/interfaces
And the output of my ip a where my ethernet card enp0s31f6 is not showing.



Thank you very much for your help.

Davide
 

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Hello,

The enp0s31f6 interface does not appear in the output of ip a!

Can you please check from the output of dmesg output using the following command?

Bash:
dmesg |grep -i enp
 
Hello,

The enp0s31f6 interface does not appear in the output of ip a!

Can you please check from the output of dmesg output using the following command?

Bash:
dmesg |grep -i enp
Thank you for your reply.

There's no output when I run the command.
Days ago I was also getting this error that is no longer there btw:

Intel NIC e1000e hardware unit hang​

It's like the ethernet card is no longer installed?
 
regarding the Intel NIC e1000e hardware unit hang you can follow this thread [0], but since the system does not see the enp0s31f6 interface, can you please check if the network device is listed using lspci?

Bash:
lspci | egrep -i 'network|ethernet'

Can you also provide us with the output of pveversion -v

[0] https://forum.proxmox.com/threads/intel-nic-e1000e-hardware-unit-hang.106001/
 
regarding the Intel NIC e1000e hardware unit hang you can follow this thread [0], but since the system does not see the enp0s31f6 interface, can you please check if the network device is listed using lspci?

Bash:
lspci | egrep -i 'network|ethernet'

Can you also provide us with the output of pveversion -v

[0] https://forum.proxmox.com/threads/intel-nic-e1000e-hardware-unit-hang.106001/
The lspci command doesn't return an output.

I'm attaching a screen shot of the pveversion. I apologize if I can't cpoy and paste but since I can't ssh into it I have no other option. Thank you in advance.

D.
 

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The lspci command doesn't return an output.

I'm attaching a screen shot of the pveversion. I apologize if I can't cpoy and paste but since I can't ssh into it I have no other option. Thank you in advance.

D.

Hmmm, can the interfaces appear if boot the server from an older kernel?
Nope they don't. Wondering if there's a way to restore network without screwing the VMs using the live cd.
 

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