Hey there,
I have recently set up WireGuard VPN with DuckDNS on a HomeAssistant Green and I have the following issue.
When I establish the VPN connection everything works exactly as it should but after some time / traffic sent (usually a matter of seconds or minutes) the HA instance looses local connectivity.
This means that it is no longer reachable locally (and therefore of course the VPN won’t work anymore as well). The only way to recover from this state is to either reboot HA or replug the Ethernet cable.
What I’ve figured / tried out so far:
- HA is not crashing and continuous to work fine (apart from the connectivity issue)
- Changing the MTU does not fix the issue
- It does not matter where the VPN traffic goes (locally or the Internet)
- Using the
network infoon the CLI does not show any changes when the issue occurs
Did someone experience a similar issue or has some ideas on how to debug this further?