Lxc Container Unreachable After a Period of Time

LXC
1

I have been running some lxc containers on an ubuntu 22 host for some time and, it has been the case from day 1 that, the lxc containers become unreachable from outside the lxcs’ host machine after a period of time (24 hours or so - not sure exactly).

The only way I can make the lxc containers reachable again is by running:

$ lxc stop --all
$ lxc start --all

I should point out that the host where the lxc containers run is still able to reach the lxc containers at all times but not other nodes on the same network.

I can’t see any logs anywhere that give me any clues as to why the lxc containers become unreachable after a period of time so I don’t know what it is I need to do in order to stop this from happening.

The configs for the lxc containers are:

config:
  user.network-config: |
    version: 2
    ethernets:
        eth0:
            dhcp4: false
            addresses:
            - {{ server_ip }}/32
            nameservers:
                addresses:
                - 8.8.8.8
                search: []
            routes:
            -   to: 0.0.0.0/0
                via: 169.254.0.1
                on-link: true
description: Server Routed Profile
devices:
  eth0:
    ipv4.address: {{ server_ip }}
    nictype: routed
    parent: wlo1
    type: nic
  root:
    path: /
    pool: dataPool
    type: disk
name: dataProfile

Any ideas on how to resolve this issue would be much appreciated. Cheers, PM