Hi! I am having some issues with letsencrypt certificates, but only on one specific wifi, on latest iOS. The issue I get is that on the WiFi I get the typical message from browsers that the site is insecure, but then if I disable WiFi, access the same domain over 4G, it works. Getting back to the WiFi, it works there too. For a while, about a day.
Is there anything that I have misconfigured? Or this is a internet provider issue?
My domain is: https://bookthis.one
I ran this command: not applicable
It produced this output: not applicable
My web server is (include version): nginx/1.10.3
The operating system my web server runs on is (include version): Debian Sketch
My hosting provider, if applicable, is: not applicable
I can login to a root shell on my machine (yes or no, or I don’t know): Yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): No