Ubuntu 22.04 No ping / No connection / Not routing / Destination Host Unreachable

My first post… I’m a bit nervous.

For some reason, the “feature-rich” Ubuntu 22.04 network environment got me stumped – there must be a setting many people cannot find to correct this issue as the tickets get closed or abandoned.
My Windows 10 PCs are Zerotier networking perfectly, but Ubuntu 22.04 won’t. I have compared the dump files, the network and settings, the peers between Windows and Ubuntu and cannot find any obvious differences. I have also loaded Zerotier on a Raspberry PI2, Raspbian GNU/Linux 11 (bullseye) armv7l and it works fine.

As for Ubuntu remedies, I have tried everything Google can provide, from firewall, reinstall, remove configs, remove peers.

Any assistance appreciated. RX Packets = 0 – what would be the potential cause of that?
Maybe a software bug?

Ubuntu 22.04

$ ufw status
Status: inactive

Interface:
zteb4mbztl: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2800
inet 192.168.192.186 netmask 255.255.255.0 broadcast 192.168.192.255
inet6 fc9f:d233:d454:342f:47a9::1 prefixlen 40 scopeid 0x0
inet6 fe80::4423:b0ff:fe01:d6ed prefixlen 64 scopeid 0x20
inet6 fdb1:5644:912e:8477:4599:9354:342f:47a9 prefixlen 88 scopeid 0x0
ether 46:23:b0:01:d6:ed txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6417 bytes 1208221 (1.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 enp0s25
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 enp0s25
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 enp0s25
192.168.192.0 0.0.0.0 255.255.255.0 U 0 0 0 zteb4mbztl

I am sure this will not matter
$ sysctl net.ipv4.ip_forward
net.ipv4.ip_forward = 1

$ traceroute 192.168.192.132
traceroute to 192.168.192.132 (192.168.192.132), 64 hops max
1 192.168.192.186 3048.801ms !H 3071.946ms !H

$ ping 192.168.192.132
PING 192.168.192.132 (192.168.192.132) 56(84) bytes of data.
From 192.168.192.186 icmp_seq=1 Destination Host Unreachable

$ zerotier-cli status
200 info 54342f47a9 1.10.1 ONLINE

$ zerotier-cli listnetworks
200 listnetworks b25644912e847746 MUISNET 46:23:b0:01:d6:ed OK PRIVATE zteb4mbztl fdb1:5644:912e:8477:4599:9354:342f:47a9/88,fc9f:d233:d454:342f:47a9::1/40,192.168.192.186/24

$ zerotier-cli listpeers
200 listpeers 10dad0cb51 – -1 – LEAF
200 listpeers 62f865ae71 50.7.252.138/9993;7293;2069 220 – PLANET
200 listpeers 778cde7190 103.195.103.66/9993;7293;8212 276 – PLANET
200 listpeers b15644912e 35.206.79.5/42863;2289;2034 257 1.10.1 LEAF
200 listpeers c5b41e5297 – -1 – LEAF
200 listpeers cafe04eba9 84.17.53.155/9993;3350;7124 169 – PLANET
200 listpeers cafe9efeb9 104.194.8.134/9993;7293;6989 304 – PLANET
200 listpeers da41607c8e – -1 – LEAF
200 listpeers dc90349aaa – -1 – LEAF
200 listpeers e8c1c916f1 – -1 – LEAF
200 listpeers f463655262 – -1 1.10.1 LEAF

Raspberry PI

zteb4mbztl: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2800
inet 192.168.192.100 netmask 255.255.255.0 broadcast 192.168.192.255
inet6 fdb1:5644:912e:8477:4599:9310:dad0:cb51 prefixlen 88 scopeid 0x0
inet6 fc9f:d233:d410:dad0:cb51::1 prefixlen 40 scopeid 0x0
inet6 fe80::4467:5eff:fefe:5a15 prefixlen 64 scopeid 0x20
ether 46:67:5e:fe:5a:15 txqueuelen 1000 (Ethernet)
RX packets 9115 bytes 2046099 (1.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 91 bytes 11242 (10.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

#ping 192.168.192.132
PING 192.168.192.132 (192.168.192.132) 56(84) bytes of data.
64 bytes from 192.168.192.132: icmp_seq=1 ttl=128 time=488 ms
64 bytes from 192.168.192.132: icmp_seq=2 ttl=128 time=483 ms

zerotier-cli status
200 info 10dad0cb51 1.10.1 ONLINE

Etc…