[SOLVED] No internet on Host but VMs and LXCs can be accessed


Mar 12, 2018

This is the first time I've ever had a problem with my proxmox server that I could not solve myself. For some weird reason my Proxmox host loses internet access after a reboot. If I restart the networking service, the host often comes back online. But it would never survive a reboot.

My /etc/network/interfaces looks like this
auto lo
iface lo inet loopback

auto enp2s0
iface enp2s0 inet manual

auto vmbr0
iface vmbr0 inet static
    bridge-ports enp2s0
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094
Can anybody please help me?

I am running Proxmox 6.0-6
Last edited:
The only part of your config that looks suspicious to me are the last two lines for vmbr0:
    bridge-vlan-aware yes
    bridge-vids 2-4094

If you're using VLANs, this might be a source for your issue if not configured correctly.
If you don't use VLANs I would remove these two lines.

However, your post is already solved?
If so, can you explain how it was solved?
There was a dhcp ip route for enp2s0. I deleted that and disabled dhcpd on the host. Rebooted and voila the problem was fixed


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