PVE will not connect to the network.


New Member
Nov 8, 2023
Proxmox will not connect to the network. Pings in and out are unreachable, no access to GUI from computers on same network and subnet.

I'm a noob to Proxmox but have some limited experience with networking. I already had Proxmox installed connected and working just fine on an HP Compaq Pro 6300 SFF. My goal is to have one port for WAN (enp2s0f0), run pfSense firewall & DHCP, and the other for LAN (enp2s0f1). When I reconfigured to do that, Proxmox wouldn't connect to the network. I'm pretty sure I screwed up the IP configurations. So, I reconfigured back to original setup (mostly), reinstalled Proxmox and corrected /etc/network/interfaces and /etc/hosts (I think), ifreload -a, and reboot. Right now I'm just trying to get enp2s0f0 working for WAN & LAN. Not sure if this is relevant but, I have a Netgear modem from Comcast, ethernet to a TP-Link 5 port manged switch (port 1), ethernet to enp2s0f0 (port 2), ethernet to Google Wifi Router (port 5).

I've tried:
- Changing IP to an unused address
- Changing NIC ports
- Changing inet from manual to static
- Adding netmask:
- Ensuring ifreload -a / reboot
- Rebooted modem, router and switch
- Checked physical connection, lights are blinking green

Router: Google Wifi
Router LAN IP:
DHCP Pool: -

/# ip a
1. lo: <LOOPBACK, UP, LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet scope host lo
valid_Ift forever preferred_Ift forever
inet6 ::1/128 scope host
valid_Ift forever preferred_Ift forever
1. eno1: ‹NO-CARRIER, BROADCAST, MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether 74:46:a0:95:d9:59 brd ff:ff:ff:ff:ff:ff
altname enp0s25
3. enp2s0f0: ‹BROADCAST, MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
link/ether 98:b7:85:01:da:fc brd ff:ff:ff:ff:ff:ff
4. enp2s0f1: ‹NO-CARRIER, BROADCAST, MULTICAST, UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 98:b7:85:01:da:fd brd ff:ff:ff:ff:ff:ff
5. vmbr0: ‹BROADCAST, MULTICAST, UP , LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 98:b7:85:01:da:fc brd ff:ff:ff:ff:ff:ff
inet scope global vmbr0
valid_lft forever preferred lft forever
inet6 feB0::9ab7:85ff:fe01:dafc/64 scope link
valid_Ift forever preferred_Ift forever

/# cat /etc/network/interfaces
auto lo
iface lo inet loopback

iface eno1 inet manual

iface enp2s0f0 inet manual

iface enp2s0f1 inet manual

auto vmbr0
iface vmbr0 inet static
bridge-ports enp2s0f0
bridge-stp off
bridge-fd 0

/# cat /etc/hosts localhost.localdomain localhost darien.server darien

Last edited:
In addition to what @leesteken suggested, concentrate on getting ping working. If you cant ping - UI will not work.
We've recently seen some esoteric issues with half of network protocols not working due to a bad(?) network card.

You have an above average complexity in your network for a home lab, i.e. managed switch, sending traffic to be routed through google wifi device, only to be returned to the managed switch to be sent out of another port via cable modem.
Reduce the complexity would be my advice.

iface enp2s0f1 inet manual
you are also missing an "i" here, typo?

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Last edited:
Ok, I figured it out, no surprise it was a dumb mistake. The Google Router has a WAN and LAN port and when I thought I put it back to it's working configuration, I neglected to include the LAN port.

Thanks for the suggestion to simplify the setup, that caused me to look at how I had everything setup again.
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