CLOSED - ERR_SSL_PROTOCOL_ERROR from remote Android app

Configuration
1

Hi ,

Duckdns and Let’sEncrypt (http challenge) have been setup successfully as per their add-on documentations ’ except the hhtp part in configuration.yaml file for the Duckdns addon).

The HA version is in my signature below.

When testing the remote access from the HA Android application , the following error is displalyed on the HA app :

ERR_SSL_PROTOCOL_ERROR

There are no infirmation in the logs so I took a tcpdum trace to get the message received by Home assistant ( screeshot attached )

Sounds like the protocol used is http and not https as per the trace.

in the HA Android App / Parameters / URL Home Assistant is https://subdomain.duckdns.org:8123
In the 4G router , NAT 8123 <-> 8123 is setup

Please any advice ?

Capture letsencrypt
Capture letsencrypt882×507 20.2 KB

2

does the URL work in a browser without needing to accept the certificate?

3

Should it not be port 443 with https…

EDIT: this is what I have/works over here
Locally (LAN) = https://IP-HA:8123
WAN = https://subdomain.duckdns.org

4

@dshokouhi ,

Yes, in the Android smartphone the FF browser needs to accept the received certificate .

Chrome is saying ERR_SSL_PROTOCOL_ERROR

5

The Android app won’t bypass certificate validation, you need to use a valid one that works in a browser.

1 Like
6

I have done new tests only with the Duckdns addon only and the HA Android app can connect using https://subdomain.duckdns.org.

=> Closed