After Install - host cannot ping gateway or internet

[pmoxnetworkhelpplz]

Hi,

I have a fresh install of Proxmox (6.2) running on my host. This was working yesterday, after a full upgrade of proxmox via the GUI. The networking no longer works. Even after fresh installs of both current and past versions of proxmox. A static IP is set to 192.168.0.199 for this MAC. I only have one NIC on this machine. No other machines are using this IP address. I'm stumped. Like I said, this was just working yesterday before the upgrade. I have a (shitty) realtek NIC



cat /etc/hosts:
127.0.0.1 localhost.localdomain localhost
192.168.0.199 <hostname>.local <hostname>

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

iface enp4s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.0.199
netmask 255.255.255.0
gateway 192.168.0.1
bridge_ports enp4s0
bridge_stp off
bridge_fd 0

ip route show:
default via 192.168.0.1 dev vmbr0 onlink
192.168.0.0/24 dev vmbr0 proto kernal scope link src 192.168.0.199

brctl show:
vmbr0 8000.b42.e99330483 no enp4s0

 

[Keyninja]

Can you run a "tcpdump -i vmbr0 arp"? Also, is the firewall disabled?

 

[Keyninja]

Also, might sound dumb, but is your router actually using 192.168.0.1?