@iso Thanks a lot! Are you using letsencrypt for tls or a reverse proxy? If letsencrypt, did you have to setup firewall rules for port 80 like mention here: https://headscale.net/tls/#http-01.
> Keep in mind, however, that Let's Encrypt will only connect to port 80 for the validation callback, so if you change tls_letsencrypt_listen you will also need to configure something else (e.g. a firewall rule) to forward the traffic from port 80 to the ip:port combination specified in tls_letsencrypt_listen.