Remote access - single URL setting: router with no NAT loopback, no DNS server customization

[misterobotique]

@gkatsikhs

Just a question, why are you routing port 53 and not setting your HA machine as the DNS server in DHCP?

I indeed set my HA machine as the DNS server, or intended to do so by setting [my HA machine IP address as the main and secondary DNS server address on my WiFi router].

@gkatsikhs

There is also a bug in AdGuard, which requires you to perform a “save” in the supervisor’s configuration page before AdGuard starts listening on the proper IP. Until you do this, you’re actually indeed losing access to the internet from all your devices, since no dns resolution is performed.

That explains why my test with AdGuard Home was unsuccessful.

@k8gg

Has anyone mentioned Nabu Casa?
That should be the easiest route, plus if everything else fails, or if everything else is deemed too much to setup/maintain, Nabu Casa could be a viable option.

I considered Nabu Casa solution and gave up when I realized it is not free.
I should have specified that I’m looking for a rather cost free solution.

@k8gg

This might not work for OP. Correct my if I’m wrong, but his problem statement being “not being able to connect to the HA from outside of the home network”, if I understand correctly:

In fact, it’s the opposite
When using my phone, as long as I’m not connected to my home WiFi remote access works perfectly (via the Companion app). However, once I’m connected to my home WiFi and tried to access HA via the Companion app, it shows the error can’t connect to Home Assistant.

@k8gg

But then, @misterobotique , could you help clarify / elaborate a bit on your setup? What’s the IP of your router? the IP of your gateway? the IP of your laptop and HA, and the configuration screen from your companion app, where the HA URL, Home WiFi SSID, Internal Connection URL, etc. are specified??
Also what are the DNS your laptop/PC would get from your DHCP server?

I will reply later today with more details regarding my network configuration.