Duck DNS & Let's Encrypt doesn't work

Installation Home Assistant OS
22

Are you running a docker image?

23 
arch	armv7l
chassis	embedded
dev	false
docker	true
docker_version	19.03.11
hassio	true
host_os	HassOS 4.12
installation_type	Home Assistant OS
os_name	Linux
os_version	4.19.127-v7l
python_version	3.8.3
supervisor	234
timezone	America/Argentina/Cordoba
version	0.114.1
virtualenv	false
24

Can be any type of limitation from my router?

25

I also had this issue with the latest Home Assistant version. Been working for years and all of a sudden started getting that BadStatusLine error and I could only access the web app locally in the LAN.

Turned out my router was port forwarding from WAN:443 -> RaspPi:8123 which has always worked fine.

To fix, I just had to change my router port forward to do WAN:443 -> RaspPi:443 and now it works again.

26

I am having a similar issue. Did you manage to resolve this?