All Container hosts all started to die at once? (all containers)

An hour ago, all containers were unable to connect to any host. Honestly, I have no idea what was going on or how to explain it. But my ZNC (IRC Bouncer) was unable to resolve to the DNS, all my web containers no longer worked. Even my Discord bot(s) started to complain about unable to connect to the host.

Any idea as to why this could have happened? Using LXD/C 4.1

Not sure if I can check if there’s any log available before I was forced to reboot my machine in order to fix the problem.

Could be the DNS/DHCP server crashing somehow causing the containers to lose connectivity? Could also have been a change to the host causing some of the traffic to get lost, ending up with the same behavior (recently running Docker on the host has been the main source of such issues).

Anyway I can check the logs to see the cause?

ps fauxww and iptables -L -n would be a good place to start to see what may be going on.