I have installed LetsEncrypt certificates on several IIS Version 10 .NET nodes, where the solution DNNsoftware.com is running on. The result of the certificates is not consistent: Only one node (technically a IIS website) can be reached on different Windows 10 PCs as well as on a Android phone, without prior certificate security warnings.
But there are nodes, which websites can be displayed successfully on one Windows PC with Chrome, while the same website displays a dialog with “Microsoft-Organization-Access” to confirm with Chrome on a different Windows PC. Also the Android phone shows the warning dialog on 2 different browsers.
My goal is, to display any website on any customer device, without prior dialog box, just like letsencrypt.org is appearing on my screen.
The certificates have been created via PowerShell locally on the productive webserver with success, no errors. All traffic is redirected from http to https within IIS via URL Rewrite rule. Is there any detail, I might have forgotten, or which has to be verified in addition?
Many thanks for your help.