[SOLVED] Supervisor has no internet/DNS connection due to WireGuard addon?

Hi all,

I’ve setup latest HA (v2020.12.1) on Debian 10 (Armbian, with latest updates as of today) on an ODROID XU4 successfully but realized that the supervisor has no internet connection if I enable the WireGuard addon, LOG:

I’ve clicked “Supervisor -> Addon store -> 3 dots -> Reload” (as a test case) which generates the error “'GitRepo.pull' blocked from execution, no supervisor internet connection” (see log). After stopping/disabling Wireguard and restarting the supervisor. the problem still persists. However, if I reboot the entire host, the problem is gone. If I then start Wireguard again, it happens again (reproducable in a deterministic manner). (Note that I also have Adguard Home installed but confirmed that it doesn’t have any effects on this problem.)

It seems that its a DNS related problem but (in Debian bash):

$ ha dns info  
- dns://192.168.xxx.30
- dns://
servers: []
update_available: false
version: 2020.11.0
version_latest: 2020.11.0

(192.168.xxx.30 is the ODROID.)

and (dito):

$ nmcli con show "Armbian ethernet"

Weird is that this happens upon a fresh installation…

I’ve also started WireGuard with the default config and it still happens.

Any ideas? Thank you very much!

For my solution, see here: https://github.com/hassio-addons/addon-wireguard/issues/57