Home Assistant is often not accessible from outside, when using the mobile network. However, as soon as I use a VPN or connect to a foreign Wifi, it works again and always 100% reliably. Sometimes I can also access Home Assistant from the mobile network. But how long that works is pure luck. Sometimes it works for a few days, sometimes just only a few minutes and the reconnection fails.
The app then gives me the error
NSURLErrorDomain -1003.
As soon as I connect with an external wifi, the issue is gone and I can connect again.
My Domain is https://homeha.xxxx.synology.me:8123
The configurations from Synologys Reverse Proxy Rule:
In my configuration.yaml is the following:
http:
server_port: 8123
ip_ban_enabled: true
login_attempts_threshold: 10
use_x_forwarded_for: true
trusted_proxies:
- 172.17.0.1 #Found this on the internet. Should be always in?
- 10.220.60.5 #Synology
- 10.220.60.20 #Router
Can someone spot something fishy that my cause this problems?
PS: I still have an IPv4 address to my connection.
Hey, I’m using the same setup on my NAS, reverse proxy & Synology cert/external domain name.
Did you ever find a solution?
The strange thing for me is that sometimes (not very often) it works for both me and my partner externally on mobile data. More often than not though I’m getting:
“A server with the specified hostname could not be found.
NSURLErrorDomain -1003”
(Btw, if you didnt realise, 172.17.0.1 is fine, it means “this device” it’s the loop back address for the local device that it’s running on.)
I have other things configured to use the remote proxy and they all work fine with the same url/different sub domain, so I dont think this is a DNS issue with the provider/cert.
However we experience the same, if on a foreign WiFi it’s fine.
It’s bizarre, at the same I have this issue my other services are working.
Since you are using some sort of proxy you have to ensure that websockets are forwarded correctly. If they are not the typical 60s loop occurs.
Example for Apache (ProxyPass):
# Websockets
RewriteEngine On
RewriteCond %{HTTP:Upgrade} websocket [NC]
RewriteRule /(.*) ws://localhost:8123/$1 [P]
This part is only for rewriting the WebSockets. Below is the ProxyPass part:
# Proxy Pass
ProxyRequests On
SSLProxyEngine On
ProxyPass / http://localhost:8123/
ProxyPassReverse / http://localhost:8123/
ProxyPreserveHost On
AllowCONNECT 8123
