I’m having this strange issue where I’m unable to connect to Home assistant when I’m connected via a VPN to my home network.
OpenVPN server on my router.
OpenVPN client on my phone (android 12)
HomeAssistant running on a HyperV VM connected via LAN
When I’m connected to WIFI, everything works fine (both companion app and via local url 192.168.1.65:8123
And when connected via VPN I can access other devices on my LAN, (opensprinkler, tasmota switches, etc) via their 192.168 address
But when I’m connected via the VPN neither HA app or local url work. (i don’t even get an error message in the browser, the progress bar moves about 5% of the way then stops, and it just sits there)
Same behaviour in an incognito tab.
And the companion app give me the “Unable to connect to Home Assistant” message
So then I installed OpenVPN client on my partners phone.
Everything works perfectly when connected via VPN.
Huh?
So it is something to do with my phone but specific to HomeAssistant.
Any suggestions on where I need to look to investigate further? Logs etc