[SOLVED] PVE can't ping gateway, no web GUI -- ssh works

[sonway-reid]

I solved the issue.

Title says issue.
This is a fresh install.

EDIT: I was able to access the web UI via FQDN:8006. Still no: access with IP address, can't ping gateway, can't update/upgrade/install/etc through UI or CLI.

Network
subnet 255.255.252.0
gateway 10.0.0.1
pve 10.0.3.1 /\ 10.0.0.250
switch 10.0.1.2
ssh client 10.0.1.88 (Archlinux workstation)

root@pve:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback

iface enp2s0f0 inet manual

auto vmbr0
iface vmbr0 inet static
    address 10.0.3.1/22
    gateway 10.0.0.1
    bridge-ports enp2s0f0
    bridge-stp off
    bridge-fd 0

iface enp2s0f1 inet manual

auto vmbr1
iface vmbr1 inet static
    address 10.0.0.250/22
    bridge-ports enp2s0f1

root@pve~# 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 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp2s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
    link/ether 00:25:90:82:19:36 brd ff:ff:ff:ff:ff:ff
3: enp2s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr1 state UP group default qlen 1000
    link/ether 00:25:90:82:19:37 brd ff:ff:ff:ff:ff:ff
4: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:25:90:82:19:36 brd ff:ff:ff:ff:ff:ff
    inet 10.0.3.1/22 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::225:90ff:fe82:1936/64 scope link
       valid_lft forever preferred_lft forever
5: vmbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:25:90:82:19:37 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.250/22 scope global vmbr1
       valid_lft forever preferred_lft forever
    inet6 fe80::225:90ff:fe82:1937/64 scope link
       valid_lft forever preferred_lft forever

root@pve~# cat /etc/hosts
127.0.0.1       localhost.localdomain   localhost
10.0.3.1        pve.sonway.io           pve
10.0.0.1        gateway.sonway.io       gateway[/ICODE]

[ICODE]root@pve:~# cat /etc/resolv.conf
search sonway.io
nameserver 1.1.1.1
nameserver 1.0.0.1
######
#nameserver 1.1.1.2
#nameserver 1.0.0.2
######
#nameserver 1.1.1.3
#nameserver 1.0.0.3
[/ICODE]

[CODE]root@pve:~# ping -c3 10.0.0.1
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
^C
--- 10.0.0.1 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2040ms

root@pve:~# ping -c3 10.0.3.1
PING 10.0.3.1 (10.0.3.1) 56(84) bytes of data.
64 bytes from 10.0.3.1: icmp_seq=1 ttl=64 time=0.044 ms
64 bytes from 10.0.3.1: icmp_seq=2 ttl=64 time=0.024 ms
64 bytes from 10.0.3.1: icmp_seq=3 ttl=64 time=0.023 ms

--- 10.0.3.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2041ms
rtt min/avg/max/mdev = 0.023/0.030/0.044/0.009 ms
root@pve:~# ping -c3 10.0.1.88 #ssh client
PING 10.0.1.88 (10.0.1.88) 56(84) bytes of data.
64 bytes from 10.0.1.88: icmp_seq=1 ttl=64 time=0.768 ms
64 bytes from 10.0.1.88: icmp_seq=2 ttl=64 time=0.935 ms
64 bytes from 10.0.1.88: icmp_seq=3 ttl=64 time=0.774 ms

--- 10.0.1.88 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2032ms
rtt min/avg/max/mdev = 0.768/0.825/0.935/0.077 ms
root@pve:~# ping -c3 1.1.1.1
PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
^C
--- 1.1.1.1 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2028ms

root@pve:~# ping -c3 google.com
^C
root@pve:~# ping -c3 www.google.com
^C
root@pve:~# ping -c3 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2046ms

root@pve:~# ping localhost
PING localhost.localdomain (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=1 ttl=64 time=0.049 ms
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=2 ttl=64 time=0.022 ms
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=3 ttl=64 time=0.021 ms
^C
--- localhost.localdomain ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2043ms
rtt min/avg/max/mdev = 0.021/0.030/0.049/0.013 ms