#Remote access stopped working

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night atlas
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Conscious this could be me being thick but thanks to support from Discord users I have been successfully using HA remotely via Nabu Casa for a week or more.

Today it seems to have stopped working. I have definitely not changed anything so whatever broke, it broke itself. I am as sure as I can be that my configuration is (certainly was) correct -- mostly evidenced by the fact that it was working. See screenshots:

  • I am fairly sure I was outside my home network (LAN) when I first got it working. I did follow the instructions, pasted in the URL from Home Assistant Cloud > Remote Access (the URL with format http://----------.ui.nabu.casa) as my external URL and it worked.
  • Looking at it now in the app, I noticed in Settings > Companion App > Servers > Home under "External URL" (where I think I previously pasted the URL) it now just says "Home Assistant Cloud" and when you tap into that setting there is a switch "Home Assistant Cloud" that is set to on, and a message underneath is saying "When connecting via Cloud, the External URL will not be used".

I am guessing that this is the simple native cloud integration I missed the first time around (presumably because I was away from home and off my network), maybe once I came home and joined my network it reconfigured itself? That probably sounds implausible but I've never seen that switch before and I am almost 100% certain that when I had it working, I had pasted in the URL from Remote Access.

I guess the obvious thing to do is to turn the switch off and re-paste the URL but without understanding what's happening or why I am loathe to do that a) in case it just reconfigures itself again, b) just for the learning I hate to take the "dumb" path without understanding what happened.

Any help appreciated. Thank you.

Alastair

night atlas
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Update to the above -- could it be that there have been problems with the Home Assistant Cloud and/or something else within Nabu Casa? Nothing showing on Down Detector but randomly I just went out for 20mins and HA was able to communicate between my car and my system whilst not on wifi, so it seemed to have come back to life (without me doing anything). It definitely isn't a cellular connectivity thing because in the moments where I was unable to use HA, i was able to use both the native service (Videx) and also the HomeKit integration (both over cellular).