Ok I see. Thank you Wally for the important clarification!
I’m using Duckdns and Nginx. i restarted everything, individual and general. nothing works. my certificate is still valid thil may.
Not exactly descriptive!
When does it fail in the process and how and with what error messages?
What does the logs of the integrations tell you?
The app doesn’t open and the Google Chrome Browser say Deceptive site ahead within a red page. Nothing works to fix the certificate problem. The thing is that with other browsers there is no certificate error but the main problem is that the android app doesn’t open because of the same error. Deceptive site ahead
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That is the probably chrome browser’s malware detection that kicks in.
You need to contact Google about it or use another browser.
I can recommend Firefox. It has more privacy.
Thank you Francis! I guess the solution is to report to google that this is not a phishing site.
https://safebrowsing.google.com/safebrowsing/report_error/?hl=en
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same issue starting today, any help please.
I commented just above you what the solution is
I Just restarted HA, everything was fine.
+1 solved with the nginx add-on reboot
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Same problem, nothing worked. I have SSL renew minutes ago. I had a custom certificate which was about to expire but it was not expired.
I checked
- The certificate on local computer the date is fine will expire in June now
- Time date and time-zone
- I cleared cache on mobile app
- I cleared storage on mobile app and configured again
- Access from browser on same device works without issues
- Reboot the entire system
- I removed local url from mobile device
- Set the local url same as public url
Nothing worked;
For me it appears only once, when I open the app, if I’m just doing a touch outside of the dialog never appears again.
So, trying to isolate the issue I created another dashboard without too many tiles just some simple things in there and set that dashboard as the default for mobile app.
Surprise, it works fine. When I’m loading my initial dashboard, the dialog appears again.
So, as a conclusion, it seems (at least for me) that is not my certificate that fails but most probably I have a link, in the dashboard, which is not quite secured.
I will investigate all the links from that dashboard to find it but most probably I would have to go and check all the tabs from that dashboard and not just the first one 
Hope it helps.
Back… YES found it. It was just an URL which was loading an image as background for a tile, and that URL had an expired certificate. Removing the URL fixed the problem. Would be nice if those faulty URLs would appear as warning in logs.
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They can’t be in the logs because the server does not see the certificates.
It is the client that makes the connection and get the faulty certificate.
I’m aware about that. I was referring to developer tools console. I’m a back-end dev, I don’t exactly know how front-end is doing a request and if is possible to check that in front-end but if the browser knows when an url has an expired certificate… it should be a way to do that … maybe something like this???
Well, you should be able to make a sensor that check the certificate and extract the expire date, since it is public information in the certificate.
It is just not something HA do by default.
Thank you, I had similar problem and couldn’t figure it out! : )
I have rain map service on one tile and seems like their certificate has got old!
nginx addon restart solved it for me too - thank you for suggesting.
HA reboot didn’t help.