HASS.IO Let's Encrypt renewal failed after several renewed months

Hi there,

I’m on HASS.IO 0.94.1. I’ve been uding the Let’s Encrypt addon for a year or so and it’s been working without any issues.

Until now:)

I’m running an auto-renewal automation, but today the auto-renewal just failed:

Type:   unauthorized
Detail: Invalid response

I’m forwarding port 88 -> 80 because I’m using 80 -> 80 for my Synology’s certificate… It used to work with this setup, but today I realized that it’s throwing this error and keeps me using my HA instance outside the home network. As the response is the error HTML of the Synology, it seems that it uses port 80 regardless of the “Host port” setting.

Does anyone have any suggestions?