After IP address change, cannot route to LAN or WAN

[rqbanerjee]

Hi,
Home user who had a great proxmox cluster running. I installed a firewalla on Monday night, and it changed my IP addressing scheme:
old: 192.168.1.*
new: 192.168.27.*

Nothing unusual about my new network.

This morning, I updated my proxmox host:
/etc/network/interfaces"

auto eno1
iface eno1 inet manual

auto vmbr0
iface vmbr inet static
    address 192.168.27.200/24
    gateway 182.168.27.1
    bridge-ports eno1
    bridge-stp off
    bridge-fd 0

I used 'ip a' to verify that eno1 and vmbr0 are still the interface names. I also updated /etc/resolv.conf to:

search local
nameserver 192.168.27.1

since I the rest of my network is using 192.168.27.1 as the DNS server (my firewalla firewall) and succeeding.

Rebooted twice.

However, I get no network connectivity out of the Proxmox host or any of the guests.

# dig www.google.com
;; UDP setup with 192.168.27.1#53 for www.google.com failed: network unreachable.
;; no servers could be reached

Pings to LAN and WAN also fail.

# ping 192.168.27.1
ping: connect: Network is unreachable

What could it be? My Proxmox host has our Unifi controller on it, and now the entire WiFi network at our home is down because Unifi APs are not passing along DHCP requests properly. Please help me before my wife gets home!